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3 years ago

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(WILL MARK BRAINLIEST) Solve x^2-4x-12=0. SHOW YOUR WORK! show and DESCRIBE EACH STEP!

2 answers:

Natasha_Volkova [10]3 years ago

8 0

<span>x^2 - 4x - 12 = 0
factors
(x - 6)(x + 2) = 0
</span>Set (x - 6) and (x + 2)<span> equal to </span><span>0</span><span> and solve for </span><span>xx</span>.<span>
x - 6 = 0; x = 6
x + 2 = 0; x = -2

answer
x = -2 or x = 6</span>

Reika [66]3 years ago

5 0

Since <span><span>−12</span><span>-12</span></span> does not contain the variable to solve for, move it to the right side of the equation by adding <span>12</span> to both sides.<span><span><span>x2</span>−4x=12</span></span>Move <span>12</span> to the left side of the equation by subtracting it from both sides.<span><span><span>x2</span>−4x−12=0</span></span>Factor <span><span><span>x2</span>−4x−12</span><span><span>x2</span>-4x-12</span></span> using the AC method.<span><span><span>(x−6)</span><span>(x+2)</span>=0</span></span>Set <span><span>x−6</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=6</span></span>Set <span><span>x+2</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=−2</span></span>The solution is the result of <span><span>x−6=0</span></span> and <span><span>x+2=0</span></span><span>x=6,−<span>2</span></span>

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