Subtract
7
from both sides of the equation.
x2−8x=−7
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of
b.(b2)2=(−4)2
Add the term to each side of the equation.
x2−8x+(-4)2=−7+(−4)2
yan ba yun
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Answers & Comments
Subtract
7
from both sides of the equation.
x2−8x=−7
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of
b.(b2)2=(−4)2
Add the term to each side of the equation.
x2−8x+(-4)2=−7+(−4)2
yan ba yun