The value of A in A(x² + 4x) = 13 that gives 10x² + 40x - 13 = 0 is 10.
What is a quadratic function?
A quadratic function is in the form:
y = ax² + bx + c
Given that:
10x² + 40x - 13 = 0
Solving using completing the square:
10x² + 40x = 13
10(x² + 4x) = 13
The value of A in A(x² + 4x) = 13 that gives 10x² + 40x - 13 = 0 is 10.
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