Identify a, b, c: Identify a, b, and c in the quadratic expression y2+6y+5. Compare y2+6y+5 with the standard quadratic form ax2+bx+c. Here, a=1, b0, and b1.
Find Numbers for a∗c: Find two numbers that multiply to a∗c (which is 1∗5=5) and add up to b (which is 6).The two numbers that satisfy these conditions are 1 and 5 because:1∗5=5 and 1+5=6.
Rewrite Quadratic Expression: Write the quadratic expression using the two numbers found in Step 2 to split the middle term. y2+6y+5 can be rewritten as y2+1y+5y+5.
Factor by Grouping: Factor by grouping.Group the terms to find common factors:(y2+1y)+(5y+5)Factor out a y from the first group and a 5 from the second group:y(y+1)+5(y+1).
Factor out Common Binomial: Factor out the common binomial factor (y+1). The factored form is (y+1)(y+5).
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