Question

The value of x² + 3x - 8 when x = -3 is​

Answer 1

Given:

• Given expression = x² + 3x - 8
• x = (-3)

To find:

• Value of expression on the given value of x

Solution:

In the given question, we have given expression is x²+3x-8 where x = (-3)

Putting value of x in expression:

x² + 3x - 8

→ (-3)² + 3×(-3) - 8

→ 9 + (-9) -8

→ 9 - 9 - 8

→ 0 -8

→ -8

Therefore,

Value of expression on the given value of x is -8.

Answer 2

Answer:

(-3)

$( - 3)^{2} + 3( - 3) - 8 \\ = 9 - 9 - 8 \\ = - 8$

ans = -8