Question

@Vijeya3 Last One ;)

Factor.

x^2 + 25x - 100



A. (x - 2)(x + 50)


B. (x - 5)(x + 20)


C. (x + 4)(x - 25)


D. Prime

Answer 1

You could check each set of factors by multiplying them together (FOIL method).
For example: (x-5)(x+20)= x^2 + 20x - 5x - 100 = x^2 + 15x - 100. Is this the same as the original quadratic?