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2 years ago

11

Katy wants to reduce 180/315 , but she wants to do it in one step.Which of the following is the greatest common factor that she

should use to reduce this fraction?

1 answer:

HACTEHA [7]2 years ago

7 0

Hello,

315=1*180+135
180=1*135+45
135=3*45+0
GCF(315,180)=45
180/315=4*45/(7*45)=4/7

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2 years ago

What number must you add to complete the square x^-8x=39

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Answer:

Given equation: $x^2-8x =39$

when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;

$x^2-8x+4^2 = 39 +4^2$

∵8 is the value $(\frac{8}{2})^2$

Notice that, we add this both sides so that it maintains the equality.

then;

$x^2-8x+4^2 = 39 +4^2$

$(x-4)^2 = 39 + 16$ [ $(a-b)^2 = a^2-2ab+b^2$ ]

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2 years ago

Read 2 more answers