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more math work!? : =/?
Factor completely:
x^2-5x
Factor completely:
25x^2+4
Multiply and simplify (3x + 2)(x - 5)
If -3x > 9, then x < -3
True or false ?
3x(2x2 + 5x - 4) = ?
Multiply (3x2y5)(-2x4y)
Solve for x:
x^2 - 25
_______ = 0
x
if you cant answer all , at least one !
pleaseeeeeeeeeeeeee .
3 Answers
- Jun AgrudaLv 71 decade agoFavorite Answer
= x² - 5x
= x(x - 5)
Answer: x(x - 5)
------------
= 25x² + 4
Answer: this is a prime and can't further be factored.
-----------
= (3x + 2)(x - 5)
= 3x(x) + 3x(- 5)+ 2(x) + 2(- 5)
= 3x² - 15x + 2x - 10
= 3x² - 13x - 10
Answer: 3x² - 13x - 10
------------
- 3x > 9
- x > 3
x < - 3
Answer: TRUE
-----------
= 3x(2x² + 5x - 4)
= 6x³ + 15x² - 12x
Answer: 6x³ + 15x² - 12x
------------
= (3x^2y^5)(- 2x^4y)
= 6x^6y^6
Answer: 6x^6y^6
------------
(x² - 25)/x = 0
x² - 25 = 0
x² = 25
x = ± 5
Answer: x = 5, - 5
- 1 decade ago
1) x(x-5) distributive law
2) can't be factored in the real number system, but in imaginary numbers it is (5x+2i)(5x-2i)
3) Use the FOIL method
4) Divide the first inequality by -3 and reverse the < sign; so what do you think?
5) Curses, FOIL'ed again
6) multiply by x, then solve x^2-25=0,, by writing it as (x-5)(x+5) = 0.
- Anonymous1 decade ago
x^2 - 5x
x(x - 5)
25x^2 + 4
( 5x - 2i)(5x + 2i)
(3x + 2)(x - 5)
3x^2 - 15x + 2x - 10
3x^2 - 13x + 10
Too many questions.That is all I am doing.
