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Best Answer
15x2 - 56 = 88 + 6x2
Subtract 6x2 from each side:
9x2 - 56 = 88
Add 56 to each side:
9x2 = 144
Divide each side by 9:
x2 = 144/9
Take the square root of each side:
x = 12/3 = 4
x = -4
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Related questions
What are the x-solutions for the equation below 15x2 - 56 equals 88 plus 6x2?
15x2-56 = 88+6x2 15x2-6x2-56-88 = 0 9x2-144 = 0 Divide all terms by 9:- x2-16 = 0 (x-4)(x+4) = 0 x = 4 or x = -4
Which values of x are soluteto the equation below 15x2-56 equal 88 plus 6x2?
If: 15x2-56 = 88+6x2 Then: 9x2 = 144 And: x2 = 16 So: x = 4
What are the x-solutions for the equation below 10x2 - 56 equals 88 - 6x2?
10x2 - 56 = 88 - 6x2 : 10x2 + 6x2 = 88 + 56 : 16x2 = 144 : x2 = 9 : x = ± 3
15 x2 plus 2x-56?
15x2 + 2x - 56 = 15x2 + 30x - 28x - 56 = 15x(x + 2) - 28(x + 2) = (15x - 28)(x + 2)
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