Solution - Simplification or other simple results
Step by Step Solution
Step 1 :
Trying to factor by splitting the middle term
1.1 Factoring x2-4x-1152
The first term is, x2 its coefficient is 1 .
The middle term is, -4x its coefficient is -4 .
The last term, "the constant", is -1152
Step-1 : Multiply the coefficient of the first term by the constant 1 • -1152 = -1152
Step-2 : Find two factors of -1152 whose sum equals the coefficient of the middle term, which is -4 .
-1152 | + | 1 | = | -1151 | ||
-576 | + | 2 | = | -574 | ||
-384 | + | 3 | = | -381 | ||
-288 | + | 4 | = | -284 | ||
-192 | + | 6 | = | -186 | ||
-144 | + | 8 | = | -136 | ||
-128 | + | 9 | = | -119 | ||
-96 | + | 12 | = | -84 | ||
-72 | + | 16 | = | -56 | ||
-64 | + | 18 | = | -46 | ||
-48 | + | 24 | = | -24 | ||
-36 | + | 32 | = | -4 | That's it |
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -36 and 32
x2 - 36x + 32x - 1152
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x-36)
Add up the last 2 terms, pulling out common factors :
32 • (x-36)
Step-5 : Add up the four terms of step 4 :
(x+32) • (x-36)
Which is the desired factorization
Final result :
(x + 32) • (x - 36)
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