Solution - Simplification or other simple results
Step by Step Solution
Step 1 :
Equation at the end of step 1 :
(32x2 - 49x) - 30
Step 2 :
Trying to factor by splitting the middle term
2.1 Factoring 9x2-49x-30
The first term is, 9x2 its coefficient is 9 .
The middle term is, -49x its coefficient is -49 .
The last term, "the constant", is -30
Step-1 : Multiply the coefficient of the first term by the constant 9 • -30 = -270
Step-2 : Find two factors of -270 whose sum equals the coefficient of the middle term, which is -49 .
| -270 | + | 1 | = | -269 | ||
| -135 | + | 2 | = | -133 | ||
| -90 | + | 3 | = | -87 | ||
| -54 | + | 5 | = | -49 | That's it |
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -54 and 5
9x2 - 54x + 5x - 30
Step-4 : Add up the first 2 terms, pulling out like factors :
9x • (x-6)
Add up the last 2 terms, pulling out common factors :
5 • (x-6)
Step-5 : Add up the four terms of step 4 :
(9x+5) • (x-6)
Which is the desired factorization
Final result :
(x - 6) • (9x + 5)
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