Identify coefficients: Identify the coefficients a, b, and c in the quadratic expression 2h2+15h+7 by comparing it to the standard form ax2+bx+c.a=2, b=15, c=7
Find two numbers: Find two numbers that multiply to a∗c (2∗7=14) and add up to b (15).The numbers that satisfy these conditions are 14 and 1 because 14∗1=14 and 14+1=15.
Rewrite middle term: Rewrite the middle term, 15h, using the two numbers found in the previous step: 14h and 1h. The expression becomes 2h2+14h+1h+7.
Factor by grouping: Factor by grouping. Group the first two terms and the last two terms.(2h2+14h)+(1h+7)
Factor out common factor: Factor out the greatest common factor from each group. 2h(h+7)+1(h+7)
Factor out common factor: Factor out the greatest common factor from each group.2h(h+7)+1(h+7)Since both groups contain the common factor (h+7), factor it out.(2h+1)(h+7)
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