Solution - Simplification or other simple results
Step by Step Solution
Step 1 :
Equation at the end of step 1 :
(3x2 - 10x) + 8
Step 2 :
Trying to factor by splitting the middle term
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 .
-24 | + | -1 | = | -25 | ||
-12 | + | -2 | = | -14 | ||
-8 | + | -3 | = | -11 | ||
-6 | + | -4 | = | -10 | That's it |
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and -4
3x2 - 6x - 4x - 8
Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (x-2)
Add up the last 2 terms, pulling out common factors :
4 • (x-2)
Step-5 : Add up the four terms of step 4 :
(3x-4) • (x-2)
Which is the desired factorization
Final result :
(x - 2) • (3x - 4)
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