Question

(3y-2)²=??? заранее спасибо

Answer 1

впринципе это было не сложно просто раскрыть скобки по формуле

Answer 2

$(3y-2)^{2} = 9 {y}^{2} - 12y + 4$

применила формулу сокращенного умножения: квадрат разности

$(a-b)^{2} = a^{2} - 2ab + {b}^{2}$

Answer 3

Squaring the Expression (3y-2)²

To find the value of the expression (3y-2)², we can use the formula for squaring a binomial, which is (a-b)² = a² - 2ab + b². In this case, a = 3y and b = 2.

So, (3y-2)² = (3y)² - 2 * 3y * 2 + (2)².

Now, let's calculate each part step by step.

1. Calculate (3y)²: - (3y)² = 9y².

2. Calculate 2 * 3y * 2: - 2 * 3y * 2 = 12y.

3. Calculate (2)²: - (2)² = 4.

Now, we can substitute these values back into the original expression:

(3y-2)² = 9y² - 12y + 4.

So, the value of the expression (3y-2)² is 9y² - 12y + 4.