Question

Gio is solving the quadratic equation by completing the square. 5x2 + 15x – 4 = 0 What should Gio do first? Isolate the constant. Factor 5 out of the variable terms. Isolate the variable x. Add 9 to both sides of the equation

Answer 1

Answer:

Factor 5 out of the variable terms.

Explanation:

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Answer 2

Answer:

Factor 5 out of the variable terms.

Explanation:

For solving the quadratic equation by completing the square, we first need to ensure that the constant of the square variable is unit.

Following are the steps involded:

$5x^{2} +15x-4=0$

$\frac{5}{5} x^{2} +\frac{15}{5} x-\frac{4}{3} =0$

$x^{2} +3x-\frac{4}{3}=0$

$x^{2} +3x+\frac{9}{4} =\frac{9}{4}+\frac{4}{3}$

$(x+\frac{3}{2} )^{2}=\frac{43}{12}$