Is the expression a perfect square if so, factor the expression.

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

8 0

The answer is a. below you will find the step by step solution on how to solve this problem.

stepan [7]3 years ago

5 0

I would say A.
I hope this helps!

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I already solved this problem. I just need help with the HINT part.

frutty [35]

$x+y=25 \\ y=25-x~~Other~number~in~terms~of~x \\ \\ x^2+y^2=313 \\ x^2+2xy+y^2=313+2xy \\ (x+y)^2=313+2x(25-x) \\ \frac{25^2-313}{2} =25x-x^2 \\ x^2-25x+156 \\ \\ \Delta =(-25)^2-4\times 1\times 156 \\ \Delta =625-624 \\ \sqrt{\Delta}=1 \\ \\ x= \frac{25 \pm 1}{2} \\ x= \left \{ {{x_1=13} \atop {x_2=12}} \right.$

The number "x" is given by:
$y= \left \{ {{y_1=25-13 \rightarrow~y_1=12} \atop {y_1=25-12 \rightarrow ~y_1=13}} \right.$

Therefore, we have:

$\boxed {S=({12,13})} \rightarrow~The~curly~braces~does~not~want~appear~here.$

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3 years ago

Can someone explain this, please

xenn [34]

Answer:

its the 3 one

Step-by-step explanation:

3 0

3 years ago

Solve for g.<br>-6g – 5 + 5 = 2 – 8g

sergey [27]

Answer:

8.875

Step-by-step explanation:

The +5 and -5 cancel, so you are left with -69=2-8g. Subtract two on both sides to get -71=-8g then divide both side by -8 to get g=8.875.

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Tresset [83]

Answer:

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Step-by-step explanation:

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