Answer:
Square both sides and then solves the resulting quadratic equations
Step-by-step explanation:
The equation is 3sqrt(x^2-6)=3sqrt(2x+2)
We can solve this by;
First square both sides;
(3√(x²-6))²= (3√(2x+2))²
We obtain;
9(x²-6)=9(2x+2)
We simplify to obtain a quadratic equation;
x²-6=2x+2
= x²-2x-8=0
Then we solve the quadratic equation;
x²-4x+2x-8=0
x(x-4)+2(x-8)=0
(x+2)(x-8)=0
Values of x = -2 or 8
Answer:
Cube both sides and then solve the resulting quadratic equation.
Step-by-step explanation:
It's the answer on edge
The value of the solution of expression is, x = 11
We have to give that,
An expression to simplify,
4x - 7 = 2x + 15
Now, Simplify the expression by combining like terms as,
4x - 7 = 2x + 15
Subtract 2x on both sides,
4x - 2x - 7 = 15
2x - 7 = 15
Add 7 on both sides,
2x - 7 + 7 = 15 + 7
2x = 22
Divide 2 into both sides,
x= 22/2
x = 11
Therefore, the solution is, x = 11
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B.y = x + 2
C.y = 2x + 2
D.y = x – 2