Solve the equation by factoring. x2 – 3x – 28 = 0
A {-1, 2}
B-2, -1}
C{-4, 7}
D {-1}

C {-4, 7}

Step-by-step explanation:

x2 – 3x – 28 = 0

(x+4)(x-7)=0

(x-7)=0 or (x+4)=0

x=7  or  x=-4

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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