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3 years ago

22.What is a solution to (x + 6)(x + 2) = 60? A. x= -6 B. x=-4 C. X= 4 D. x = 12

Mathematics

2 answers:

Westkost [7]3 years ago

3 0

Answer:

(x+6)(x+2)=60

expand

x^2+6x+2x+12=60

x^2+8x+12=60

minus 60 both sides

x^2+8x-48=0

factor

what multiplies to -48 and adds to 8

-4 and 12

(x-4)(x+12)=0

set each to zero

x-4=0

x=4

x+12=0

x=-12

x=4 or -12

Step-by-step explanation:

timama [110]3 years ago

3 0

The answer is 4 but I’m pretty sure the first person covered the explanation

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