Step-by-step explanation:
8x-9=5x-3
Move any equation to the opposite side. I'll use the left this time
move 6 to opp side
It’s depends on your grade level if yiu in high school it totally different
Answer:
<h2>Cubing both sides of an equation is reversible.</h2>
Step-by-step explanation:
Squaring both sides of an equation is irreversible, because the square power of negative number gives a positive result, but you can't have a negative base with a positive number, given that the square root of a negative number doesn't exist for real numbers.
In case of cubic powers, this action is reversible, because the cubic root of a negative number is also a negative number. For example
We cube both sides
If we want to reverse the equation to the beginning, we can do it, using a cubic root on each side
There you have it, cubing both sides of an equation is reversible.
Answer:
=7x^2−28
Step-by-step explanation:
Let's simplify step-by-step.
7(x−2)2+28(x−2)
Distribute:
=7x2+−28x+28+(28)(x)+(28)(−2)
=7x2+−28x+28+28x+−56
Combine Like Terms:
=7x2+−28x+28+28x+−56
=(7x2)+(−28x+28x)+(28+−56)
=7x2+−28
Answer:
Step-by-step explanation:
(x-7)^2
(x-7) ( x-7)
-14x + 49
it's a perfect square function