Question

Solve the problem : 4x²-6x-3 if x = -2

Answer 1

Hello!

Answer:

`\Large \boxed{\sf 25}`

Explanation:

We have the equation:

`\sf 4x^(2) - 6x -3`

We want the result with x = -2.

◼ Replace x by -2:

`\sf 4(-2)^(2) - 6(-2) -3`

◼ Simplify the square:

`\sf 4(4) - 6(-2) -3`

◼ Simplify the products:

`\sf 16 - (-12) -3`

◼ Remove parentheses:

`\sf 16 + 12 -3`

◼ Add and subtract:

`\boxed{\sf 25}`

Answer 2

25

Explanation:

4x² - 6x - 3 if x = -2

4(-2)² - 6(-2) - 3 =

= 4 × 4 - (-12) - 3

= 25