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sdas [7]
3 years ago
9

Solve by taking the square root of both sides. 3(x+4)^2-24=0

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
6 0
<span>3(x+4)^2-24=0
</span>
<span>3(x+4)^2 = 24
</span>
<span>(x+4)^2 =  24/3
</span>
<span>(x+4)^2 = 8
</span><span>
</span><span>(x+4)² = (2√2)² ⇒ x+4 = 2√2 ⇒ x = 2√2 - 4
</span>


Anna71 [15]3 years ago
6 0
3(x+4)^2-24=0 \\&#10;3(x+4)^2=24\\&#10;(x+4)^2=8\\&#10;x+4=\sqrt8 \vee x+4=-\sqrt8\\&#10;x=-4+\sqrt8 \vee x=-4-\sqrt8\\&#10;x=-4+2\sqrt2 \vee x=-4-2\sqrt2
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