Question

(a-2b)^2-4b^2/a Хеееееелп!

Answer 1

16-16b+4b^2-2b^

16-16b+2b^2

Answer 2

To simplify the expression ((a - 2b)^2 - 4b^2) / a, let's break it down step by step:

Step 1: Expand the squared term (a - 2b)^2 using the formula (a - b)^2 = a^2 - 2ab + b^2.

((a - 2b)^2 - 4b^2) / a = (a^2 - 4ab + 4b^2 - 4b^2) / a

Simplifying the expression within the brackets, we get:

(a^2 - 4ab) / a

Step 2: Cancel out the common term "a" from the numerator and denominator:

(a^2 - 4ab) / a = (a(a - 4b)) / a

The "a" in the numerator cancels out with the "a" in the denominator:

(a(a - 4b)) / a = a - 4b

Therefore, the simplified expression is a - 4b.