Question

(b-1)*(b+1)=(b-1)*b+1

Answer 1

Ответ:

0=0

Пошаговое объяснение:

Розкриваємо дужки

b²+b-b-1= b²+b-b-1

Невідоме в одну частину, а відоме в іншу

b²-b²+b-b-b+b = -1+1

0=0

Тобі b, будь яке число.

Answer 2

Let's simplify the expressions on both sides of the equation and see if they are equal:

On the left side of the equation: (b - 1) * (b + 1)

Expanding the expression using the distributive property: (b * b) + (b * 1) - (1 * b) - (1 * 1) b^2 + b - b - 1 b^2 - 1

On the right side of the equation: (b - 1) * b + 1

Expanding the expression using the distributive property: (b * b) - (1 * b) + 1 b^2 - b + 1

So the simplified expressions on both sides of the equation are b^2 - 1 and b^2 - b + 1. These expressions are not equal, which means the given equation is not true in general.