3xsquare-10x+8=0please
Answers
2.1 Factoring 3x2+10x-8
The first term is, 3x2 its coefficient is 3 .
The middle term is, +10x its coefficient is 10 .
The last term, "the constant", is -8
Step-1 : Multiply the coefficient of the first term by the constant 3 • -8 = -24
Step-2 : Find two factors of -24 whose sum equals the coefficient of the middle term, which is 10 .
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and 12
3x2 - 2x + 12x - 8
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (3x-2)
Add up the last 2 terms, pulling out common factors :
4 • (3x-2)
Step-5 : Add up the four terms of step 4 :
(x+4) • (3x-2)
Which is the desired factorization