Answer:
Step-by-step explanation:
The given expression is

We will rewrite the expression

When we add the fraction
=
= 8
While Andre says the answer is 
because Andre added the denominator where he has to make a common denominator that should be 4 instead of 8.
Andre made mistake in this step
Picture is given below :
Answer:
A.7
5x7=35x7=245 and so on
Step-by-step explanation:
<span>x³ - 4x² - 3x² + 12x + 2x - 8
= x²(x - 4) - 3x(x - 4) + 2(x - 4)
= (x - 4)(x² - 3x + 2)
= (x - 4)(x - 1)(x - 2)
</span>
Answer:
4 s^2 / 3 r^2
Step-by-step explanation:
8 / r^3 s^2 / 6/ r s^4
8 r s^4 4 s^2
= --------- * ------- = ----------
r^3 s^2 6 3 r^2