What are the solutions of $x^{2} + 14 x = - 49$ $x^2+14x=-49$ ?

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Answer 1 · 2016-10-31T20:09:29

x=-7

$x^{2} + 14 x = - 49$ $x^2+14x=-49$

Add 49 to both sides of the equation.

$x^{2} + 14 x + 49 = 0$ $x^2+14x+49=0$

Factorise:

$(x + 7) (x + 7) = 0$ $(x+7)(x+7)=0$

Now, when $x = - 7,$ $x=-7,$ you get 0.

This means that your answer is:

x=-7 .

What are the solutions of x^2+14x=-49x2+14x=−49x^2+14x=-49?