3 years ago

Help!! please and thank you (8th grade)

Mathematics

1 answer:

notsponge [240]3 years ago

5 0

Answer:

I'm pretty sure the answer would be 3.

Step-by-step explanation:

I'm not super sure but that makes sense

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Blababa [14]

Answer:

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Step-by-step explanation:

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3 years ago

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Read 2 more answers

What number needs to be added to both sides of the equation to complete the square? X^2−7x=5 Enter your answers in the boxes.

Andrew [12]

ANSWER

We need to add half the coefficient of $x$ all square.

$\frac{49}{4}$

EXPLANATION

Given the equation,

$x^{2} -7x=5$ .

We compare to the general equation,

$ax^2+bx+c=0$

This means that;

$a=1,b=-7,c=-5$

To complete the square we add, $(\frac{b}{2})^2$

That is $(\frac{-7}{2})^2=\frac{49}{4}$ .

Hence the number to be added to both sides is $\frac{49}{4}$ .

Note that before we complete the square, the coefficient of the term in $x^2$ must always be 1.

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3 years ago

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STALIN [3.7K]

+20 because when u deposit your adding money

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4 years ago

Help!! please and thank you (8th grade) ​

Help!! please and thank you (8th grade)