SOLUTION: what is 10b exponent 2 - 15b = 8b - 12 its dealing with factoring trinomials: ax exponent 2 + bx + c.

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Question 720929: what is 10b exponent 2 - 15b = 8b - 12 its dealing with factoring trinomials: ax exponent 2 + bx + c.
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
10b exponent 2 - 15b = 8b - 12
10b%5E2+-+15b+=+8b+-12
10b%5E2+-+23b+=+-12
10b%5E2+-+23b+%2B+12+=+0
rewrite middle term as:
10b%5E2+-+15b-8b+%2B+12+=+0
group:
%2810b%5E2-15b%29+-+%288b-12%29+=+0
5b%282b-3%29+-+4%282b-3%29+=+0
%282b-3%29%285b-4%29+=+0
setting each term on left to zero:
b = {3/2, 4/5}