# Algebra

posted by .

Multiply
(x^2 + 8x + 15) / x – 4 * (x^2 – 16) / 2x + 6

• Algebra -

x^2+8x+15 = (x+3)(x+5)

so, you have

(x+3)(x+5)/(x-4) * (x-4)(x+4)/2(x+3)

the x+3 and x-4 cancel, leaving

(x+5)(x+4)/2

• Algebra -

That really helps, thanks.

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