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Can you explain/show how to solve these?
a + b + c a + 3y - m m + n - p
a - b + c 2a - 3y + m n - m + p
(x+5)^2 (3x+4)^2
2x + 4 divided by 2x^2 - 2x - 12
3x-1 divided by 3x^2 + 14x - 5
no it's not my homework, I just can't remember how to solve these.
1 Answer
- MsMathLv 71 decade agoFavorite Answer
The first one doesn't make sense.
(x+5)^2 = (x+5)(x+5) = x^2 +10x +25
(3x+4)^2 = (3x+4)(3x+4) = 9x^2 +24x +16
(2x+4) / (2x^2-2x-12)
= 2(x+2) / [2(x^2-x-6)]
= 2(x+2) / [2(x+2)(x-3)]
= 1/(x-3)
(3x-1)/(3x^2+14x-5)
= (3x-1) / [(3x-1)(x+5)]
= 1/(x+5)
