Solution - Simplification or other simple results
Other Ways to Solve:
Step by Step Solution
Step 1 :
Equation at the end of step 1 :
(2x2 + 11x) + 14
Step 2 :
Trying to factor by splitting the middle term
2.1 Factoring 2x2+11x+14
The first term is, 2x2 its coefficient is 2 .
The middle term is, +11x its coefficient is 11 .
The last term, "the constant", is +14
Step-1 : Multiply the coefficient of the first term by the constant 2 • 14 = 28
Step-2 : Find two factors of 28 whose sum equals the coefficient of the middle term, which is 11 .
-28 | + | -1 | = | -29 | ||
-14 | + | -2 | = | -16 | ||
-7 | + | -4 | = | -11 | ||
-4 | + | -7 | = | -11 | ||
-2 | + | -14 | = | -16 | ||
-1 | + | -28 | = | -29 | ||
1 | + | 28 | = | 29 | ||
2 | + | 14 | = | 16 | ||
4 | + | 7 | = | 11 | That's it |
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 4 and 7
2x2 + 4x + 7x + 14
Step-4 : Add up the first 2 terms, pulling out like factors :
2x • (x+2)
Add up the last 2 terms, pulling out common factors :
7 • (x+2)
Step-5 : Add up the four terms of step 4 :
(2x+7) • (x+2)
Which is the desired factorization
Final result :
(x + 2) • (2x + 7)
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