Question

(x + 1)(x-1)=(x + 2)(x + 3)​

Answer 1

Answer:

x= -1

Step-by-step explanation:

$x^{2}$ + x - x + 1 = $x^{2}$ +2x + 3x +6

1=5x+6

5x= -5

x= -1

Answer 2

Required Answer:-

✠ Given:

• (x + 1)(x - 1) = (x + 2)(x + 3)

✠ To Find:

• The value of x.

✠ Solution:

Given,

→ (x + 1)(x - 1) = (x + 2)(x + 3)

Multiply through parentheses.

→ x(x - 1) + 1(x - 1) = x(x + 3) + 2(x + 3)

→ x² - x + x - 1 = x² + 3x + 2x + 6

Simplify the result.

→ x² - 1 = x² + 5x + 6

Cancel out like terms,

→ 5x + 6 = -1

→ 5x = -1 - 6

→ 5x = -7

→ x = -7/5

• So, the value of x is -7/5 or -1.4.

✠ Answer:

• x = -1.4