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lucy
How to solve this equation: 7x(squared) - 20x = 12?
When I solve by completing the square the answer is
Different and when I solve by using the formula ( i.e. x=-b+-√b(squared)-4ac / 2a) the answer is different. Why is that so? It should be same right, no matter which way we solve?
3 AnswersMathematics6 years agoSolve by completing the square: x(squared) - 5x = 30?
Shall we take (-5x/2) squared, to compete the square or just (5x/2) squared? Why? Please give a reason why we have to or don't have to take coefficient's sign. I know both produce the same answer but still I want to know the traditional rule.
9 AnswersMathematics6 years agoWhat must be added to make this a perfect square: x(squared) - 7x ?
Should we take the coefficient's sign also , that is, (-7/2) squared, or just (7/2) squared?
3 AnswersMathematics6 years agoIn English Literature there sometimes is a question "what is the dramatic significance of this scene?", so how to tackle it?
How to answer such questions in exams?should we describe the scene? Or give the impression we get of the characters and whatever happens in the scene? Please help..
1 AnswerHomework Help6 years agoWhat is the best telescope for an amatuer?
What is better, a telescope or binoculars, for stargazing etc for a beginner.What brand and size would be best? I don't want a very expensive telescope or binoculars, but just a decent one with which I can study the moon and its craters in detail and also the constellations etc.
Please post a link where I can buy online such as on Amazon....but I don't really know what's the best place to buy online.
3 AnswersAstronomy & Space6 years agoWhich is the best Astronomy book?
I am just a beginner and I am looking for a complete, up to date book, which covers all aspects of astronomy yet in a comprehensive way, a book which provides details about all the topics and is perfect for a beginner and is up to date.
1 AnswerBooks & Authors6 years agoHow to use "high church" in a sentence?
3 AnswersWords & Wordplay6 years agoHow can weak eyesight be cured?
How to get rid of glasses? That is, how to make a weak eyesight normal? What care and diet should be taken?
3 AnswersOther - General Health Care6 years agoOverstraining eyes cause eyesight problems?
Does overstraining eyes during exams by not sleeping well ( not even an hour,really! ), studying too much, not taking proper diet weaken eyesight?
2 AnswersOptical6 years agoDid Neil Armstrong have a slight eyesight problem?
Did he have a perfect eyesight all through life?
3 AnswersOther - General Health Care6 years agoWhat is the book "Ramona forever" about?
What are the main points (both positive and negative)?
3 AnswersBooks & Authors6 years agoWhat is the book " house at the corner " by Enid blyton is?
Is it any good?
1 AnswerBooks & Authors6 years agoIs this universe endless?
Imagine you are in a spacecraft bound for a journey in space with no intention of returning or turning back, will there ever come an end?
21 AnswersAstronomy & Space6 years agoWhat should be the everyday routine of a healthy person during summer vacation?
Please use the format:
Wake up at 7.... Have breakfast at....and so on
1 AnswerDiet & Fitness6 years agoHow to be generous without being extravagant?
5 AnswersEtiquette6 years agoWhere can I watch India's Mega Kitchens (nat geo) online?
Please post a link.
2 AnswersMedia & Journalism6 years ago