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\left(\frac{2^{15}}{4^{7}}x-1\right)^{2}=\left(2x+2^{0}\right)^{2}+\frac{\left(2^{7}\right)^{5}}{4^{15}}
To raise a power to another power, multiply the exponents. Multiply 5 and 3 to get 15.
\left(\frac{2^{15}}{4^{7}}x-1\right)^{2}=\left(2x+2^{0}\right)^{2}+\frac{2^{35}}{4^{15}}
To raise a power to another power, multiply the exponents. Multiply 7 and 5 to get 35.
\left(\frac{32768}{4^{7}}x-1\right)^{2}=\left(2x+2^{0}\right)^{2}+\frac{2^{35}}{4^{15}}
Calculate 2 to the power of 15 and get 32768.
\left(\frac{32768}{16384}x-1\right)^{2}=\left(2x+2^{0}\right)^{2}+\frac{2^{35}}{4^{15}}
Calculate 4 to the power of 7 and get 16384.
\left(2x-1\right)^{2}=\left(2x+2^{0}\right)^{2}+\frac{2^{35}}{4^{15}}
Divide 32768 by 16384 to get 2.
4x^{2}-4x+1=\left(2x+2^{0}\right)^{2}+\frac{2^{35}}{4^{15}}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2x-1\right)^{2}.
4x^{2}-4x+1=\left(2x+1\right)^{2}+\frac{2^{35}}{4^{15}}
Calculate 2 to the power of 0 and get 1.
4x^{2}-4x+1=4x^{2}+4x+1+\frac{2^{35}}{4^{15}}
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(2x+1\right)^{2}.
4x^{2}-4x+1=4x^{2}+4x+1+\frac{34359738368}{4^{15}}
Calculate 2 to the power of 35 and get 34359738368.
4x^{2}-4x+1=4x^{2}+4x+1+\frac{34359738368}{1073741824}
Calculate 4 to the power of 15 and get 1073741824.
4x^{2}-4x+1=4x^{2}+4x+1+32
Divide 34359738368 by 1073741824 to get 32.
4x^{2}-4x+1=4x^{2}+4x+33
Add 1 and 32 to get 33.
4x^{2}-4x+1-4x^{2}=4x+33
Subtract 4x^{2} from both sides.
-4x+1=4x+33
Combine 4x^{2} and -4x^{2} to get 0.
-4x+1-4x=33
Subtract 4x from both sides.
-8x+1=33
Combine -4x and -4x to get -8x.
-8x=33-1
Subtract 1 from both sides.
-8x=32
Subtract 1 from 33 to get 32.
x=\frac{32}{-8}
Divide both sides by -8.
x=-4
Divide 32 by -8 to get -4.