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2 years ago

What is the positive solution of x square minus 36 equals 5x

Mathematics

1 answer:

777dan777 [17]2 years ago

3 0

Answer:

⇒x=9 (positive solution)

Explanation:

x2−36=5x

→x2−36−5x=0

Factor the expression:

We get:

(x−9)(x+4)=0

First solution:

⇒(x−9)=0x+4

⇒(x−9)=0

⇒x=9

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Assignment: $\bold{Simplify \ Equation: \ 7\left(3\sqrt{2}x\right)-3\left(3\sqrt{16}x\right)-3\left(3\sqrt{8}x\right)}$

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Answer: $\boxed{\bold{3\sqrt{2}x-36x}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Remove Parenthesis (a) = a

$\bold{7\cdot \:3\sqrt{2}x-3\cdot \:3\sqrt{16}x-3\cdot \:3\sqrt{8}x}$

[ Step Two ] Simplify Equations

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[ Step Three ] Rewrite Equation

$\bold{21\sqrt{2}x-36x-18\sqrt{2}x}$

[ Step Four ] Add Similar Elements

$\bold{21\sqrt{2}x-18\sqrt{2}x=3\sqrt{2}x}$

[ Step Five ] Rewrite Equation

$\bold{3\sqrt{2}x-36x}$

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$\bold{\rightarrow Mordancy \leftarrow}$

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