Which shows one way to determine the factors of x3 + 5x2 – 6x – 30 by grouping? x(x2 – 5) + 6(x2 – 5) x(x2 + 5) – 6(x2 + 5) x2(x – 5) + 6(x – 5) x2(x + 5) – 6(x + 5)

Step-by-step explanation:

I'll give you the answer. You can figure out the choice. I can't really read this.

x^2(x + 5) - 6(x + 5)  Take out the common factor.

(x + 5)(x^2 - 6)

Step-by-step explanation:

I'll give you the answer. You can figure out the choice. I can't really read this.

x^2(x + 5) - 6(x + 5)  Take out the common factor.

(x + 5)(x^2 - 6)

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a