Question

Factor the polynomial below.
20x2 - 45
A. (2x+3)(2x - 3)
B. (20x+9)(x-5)
C. not factorable
D. 5(2x+3)(2x - 3)
Please select the best answer from the choices provided
A
B
D

Answer 1

I'll teach you how to factor 20x^2-45

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20x^2-45

Factor out the common term 5:

5(4x^2-9)

Factor 4x^2-9:

(2x+3)(2x-3)

5(2x+3)(2x-3)

Your Answer Is 5(2x+3)(2x-3)

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