4(x-8)^ + x^ = x(x+119) - 47x
And the '^' indicates that the power is squared. The answer needs two solutions.
THANKS!!
And the '^' indicates that the power is squared. The answer needs two solutions.
THANKS!!
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4(x - 8)² + x² = x(x + 119) - 47x
We can start off by expand the bracket: x(x + 119), which equals x² + 119x
4(x - 8)² + x² = x² + 119x - 47x
subtract an x² of both sides of the equations, and simply the right side, to get
4(x - 8)² = 119x - 47x = 72x
Now we divide both sides by 4
(x - 8)² = 18x
Open brackets at the left side with (x - 8)² = x² - 16x + 64
x² - 16x + 64 = 18x
Subtract 18x to both sides
x² - 34x + 64 = 0
Solve for quadratic equation however you like
(here using the formula)
x = (34±√(1156 - 256)) / 2
x = (34±√900) / 2
x = (34±30)/2
x =4/2 or 64/2
x = 2 or 32
The solutions for x is 2 and 32.
{2, 32}
We can start off by expand the bracket: x(x + 119), which equals x² + 119x
4(x - 8)² + x² = x² + 119x - 47x
subtract an x² of both sides of the equations, and simply the right side, to get
4(x - 8)² = 119x - 47x = 72x
Now we divide both sides by 4
(x - 8)² = 18x
Open brackets at the left side with (x - 8)² = x² - 16x + 64
x² - 16x + 64 = 18x
Subtract 18x to both sides
x² - 34x + 64 = 0
Solve for quadratic equation however you like
(here using the formula)
x = (34±√(1156 - 256)) / 2
x = (34±√900) / 2
x = (34±30)/2
x =4/2 or 64/2
x = 2 or 32
The solutions for x is 2 and 32.
{2, 32}