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Hello!
Answer:
Explanation:
We have the equation:
We want the result with x = -2.
◼ Replace x by -2:
◼ Simplify the square:
◼ Simplify the products:
◼ Remove parentheses:
◼ Add and subtract:
25
4x² - 6x - 3 if x = -2
4(-2)² - 6(-2) - 3 =
= 4 × 4 - (-12) - 3
= 25