Simplify 2a^2-7a-15/a-5?

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Simplify 2a^2-7a-15/a-5?

Simplify 2a^2 - 7a – 15 / a - 5

2006-11-21 05:16:37 · 2 answers · asked by thomasgraham880 1 in Science & Mathematics ➔ Mathematics

2 answers

the roots of the numerator are 5 and -1.5. So, the numerator is divisible by a-5 . if you divide the numerator, you find 2a+3

the answer 2a+3

2006-11-21 05:24:10 · answer #1 · answered by maussy 7 · 0⤊ 0⤋

2a^2 - 7 a - 15 / a - 5

First unfoil the 2a^2 - 7 a - 15 if possible

[(2a +3)(a-5)] / a-5

Obviously you can cancel the a-5's and you are left with
2a + 3

2006-11-24 08:18:41 · answer #2 · answered by danjlil_43515 4 · 0⤊ 0⤋