Helppp plz I will mark brainliestttt
2 answers:
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We want to find the product:
.
By the
, we distribute 
over each of the three terms inside the parenthesis:
.
Multiplying the coefficients, and adding the exponents we get:
.
Answer:.
By the
Multiplying the coefficients, and adding the exponents we get:
Answer:
The formule is about area of a circle.
We need to solve the equation for x. Where x is the radius of the circle.
In order to solve it for x, we need isolate it for x on left side.
So, first we need to get rid pi from left side.
On dividing both sides by pi, we get
Taking square root on both sides, we get