Question

01:53:08

What is the value of A?
0.13
Isoke is solving the quadratic equation by completing
the square
10x2+40x-13=0
10x2+40x=13
A(x2+4x)=13
04
O 10
O 40
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Answer 1

9514 1404 393

Answer:

10

Explanation:

Whether in standard form or vertex form, the value of A is the coefficient of x^2.

Here it is shown as 10.