We have, 7( x 2 ) =49 7x 14=49 7x=49+14 7x=63 x= 63 7 =9 #160; Then,We get x=9 ...

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Solving a Quadratic Equation by Completion of Squares Method

Solve 7x-2=4...

Question

Solve
$7 (x - 2) = 49$ .

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Solution

We have,
$\begin{matrix} 7 (x - 2) = 49 7 x - 14 = 49 7 x = 49 + 14 7 x = 63 x = \frac{63}{7} = 9 \end{matrix}$
Then,
We get $x = 9$

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