AC Method:
1. 2a^2 * 3a + 1
A*C = 2*1 = 2. 2+1 = 3 = B
2a^2 + (2a+a) + 1
Form 2 Binomials and factor:
(2a^2+2a) + (a+1)
2a(a+1) + (a+1)
(a+1)(2a+1).
2. 15x^2 + 31x + 2
A*C = 15*2 = 30 = 30*1. Sum = (30+1)=B.
15x^2 + (30x+x) + 2
(15x^2+30x) + (x+2)
15x(x+2) + (x+2)
(x+2)(15x+1).
Note: When the coefficient of x^2 is
greater than 1, use the AC method of
factoring.
Need help please explain how to get the answers for these two factoring problems and for the second problem with the "ac method".
2a^2+1+3a
15x^2+31x+2
1 answer
2 answers