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
1.8 x 0.5 x 100=
74.3 x 0.1 x 2.1=
It is pretty much the difference between 12 and 15. And that would be 3. If this is right could you possibly give me brainliest? Hope this helped.
Answer:
7/50 meter.
Step-by-step explanation:
He has 7/8 meter. 1/5 of the piece of string is
.
Then, he uses 7/40 meter to tie a package. The rest of string will be
.
Then, the rest of string after he uses 1/5 is 7/10. Finally, he cuts the rest into 5 equal pieces, that is
.
Then, the lenght of each piece is 7/50 meter.