If p = -2, find the value of -3p^2 + 4p + 7.
If p = -2, find the value of -3p^2 + 4p + 7.
Aniket Singh , 11 Months ago
Grade
10 grade maths> If p = -2, find the value of -3p^2 + 4p +...
1 AnswersAskiitians Tutor Team
We are given the expression:
-3p² + 4p + 7
and we are asked to find its value when p = -2.
Step 1: Substitute p = -2 into the expression. We get:
-3(-2)² + 4(-2) + 7
Step 2: Simplify each term.
First, calculate (-2)²:
(-2)² = 4.
Now substitute into the expression:
-3(4) + 4(-2) + 7
= -12 - 8 + 7
Step 3: Perform the addition and subtraction: -12 - 8 = -20,
-20 + 7 = -13.
So, the value of the expression when p = -2 is:
-13.
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