Identify a, b, c: Identify a, b, and c in the quadratic expression 6g2+11g+3. Compare 6g2+11g+3 with ax2+bx+c. a=6b0b1
Find two numbers: Find two numbers that multiply to a∗c (6∗3=18) and add up to b (11).We need to find two numbers that multiply to 18 and add up to 11.The numbers 2 and 9 satisfy these conditions because 2∗9=18 and 2+9=11.
Rewrite middle term: Rewrite the middle term 11g using the two numbers found in Step 2.We can express 11g as the sum of 2g and 9g.6g2+11g+3 becomes 6g2+2g+9g+3.
Factor by grouping: Factor by grouping.Group the terms into two pairs: 6g2+2g and 9g+3.Factor out the common factor from each pair.From the first pair, we can factor out 2g: 2g(3g+1).From the second pair, we can factor out 3: 3(3g+1).
Factor out common binomial: Factor out the common binomial factor.We now have 2g(3g+1)+3(3g+1).The common binomial factor is (3g+1).Factor this out to get the final factored form: (2g+3)(3g+1).
More problems from Factor quadratics with other leading coefficients