X^2-5x-24=0 use the quadratic formula to find x
1 answer:
<span>x^2-5x-24=0
x=<span><span><span>−b</span>±<span><span>b2</span>−<span><span>4a</span>c</span></span></span><span>2a</span></span></span><span>x=<span><span><span>−<span>(<span>−5</span>)</span></span>±<span><span><span>(<span>−5</span>)</span>2</span>−<span><span>4<span>(1)</span></span><span>(<span>−24</span>)</span></span></span></span><span>2<span>(1)</span></span></span></span><span>x=<span><span>5±121</span>2
</span></span><span><span>x=<span><span>8 <span>or </span></span>x</span></span>=<span>−3
<span><span>
</span></span></span></span>
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2009cm^2
Step-by-step explanation:
Given data
let the length be L
and the width be w
so
w= x
L=x+8
P= 180cm
P= 2L+2W
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Hence the area is 2009cm^2
