Solution - Simplification or other simple results
Step by Step Solution
Step 1 :
Equation at the end of step 1 :
(26x2 + 16x) + 1
Step 2 :
Trying to factor by splitting the middle term
2.1 Factoring 64x2+16x+1
The first term is, 64x2 its coefficient is 64 .
The middle term is, +16x its coefficient is 16 .
The last term, "the constant", is +1
Step-1 : Multiply the coefficient of the first term by the constant 64 • 1 = 64
Step-2 : Find two factors of 64 whose sum equals the coefficient of the middle term, which is 16 .
| -64 | + | -1 | = | -65 | ||
| -32 | + | -2 | = | -34 | ||
| -16 | + | -4 | = | -20 | ||
| -8 | + | -8 | = | -16 | ||
| -4 | + | -16 | = | -20 | ||
| -2 | + | -32 | = | -34 | ||
| -1 | + | -64 | = | -65 | ||
| 1 | + | 64 | = | 65 | ||
| 2 | + | 32 | = | 34 | ||
| 4 | + | 16 | = | 20 | ||
| 8 | + | 8 | = | 16 | That's it |
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 8 and 8
64x2 + 8x + 8x + 1
Step-4 : Add up the first 2 terms, pulling out like factors :
8x • (8x+1)
Add up the last 2 terms, pulling out common factors :
1 • (8x+1)
Step-5 : Add up the four terms of step 4 :
(8x+1) • (8x+1)
Which is the desired factorization
Multiplying Exponential Expressions :
2.2 Multiply (8x+1) by (8x+1)
The rule says : To multiply exponential expressions which have the same base, add up their exponents.
In our case, the common base is (8x+1) and the exponents are :
1 , as (8x+1) is the same number as (8x+1)1
and 1 , as (8x+1) is the same number as (8x+1)1
The product is therefore, (8x+1)(1+1) = (8x+1)2
Final result :
(8x + 1)2
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