(x)(4x)=7*28

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Solution for (x)(4x)=7*28 equation:


Simplifying
(x)(4x) = 7 * 28

Remove parenthesis around (4x)
x * 4x = 7 * 28

Reorder the terms for easier multiplication:
4x * x = 7 * 28

Multiply x * x
4x2 = 7 * 28

Multiply 7 * 28
4x2 = 196

Solving
4x2 = 196

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '4'.
x2 = 49

Simplifying
x2 = 49

Take the square root of each side:
x = {-7, 7}

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