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HELP ME OUT PLEASE SOLVE IT..............factor

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2 Answers

(1) 4x2-28x-72
Step 1: Factor 4 out of the equation
Step 2: Find two numbers that multiply to get -18 and add to get -7
(2) -x2+8x-15
Step 1: Factor -1 out of the equation
Following the same steps from #1:
1)  4(x^2-7x-18)
2)  -1(x^2-8x+15)