Answer:
Must add: 202
Step-by-step explanation:

a = x
2ab = 26x
2ab = 26a [ substitute a instead of x]

b= 13
So,

But given equation is :

We have find the difference between 169 and -33 to get the number that should be added to get the perfect square.
That is , 169 - (-33) = 202
Therefore ,

Answer:
10 minutes
Step-by-step explanation:
I'm not sure if im correct, so im sorry if im wrong.
Answer:
x = 2, y = 3
Step-by-step explanation:
5x – 4y = -2
2x + 4y = 16
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<em>Solve by elimination. (-4y and +4y gives 0)</em>
7x = 14
x = 2
<em>Substitute 2 in one of the equations in order to find y.</em>
5(2) - 4y = -2
10 - 4y = -2
-4y = -12
y = 3
x = 2, y = 3
hope this helps!! p.s. i really need brainliest :)
Answer:

Step-by-step explanation:

→ First plus p to both sides to isolate 3a

→ Divide both sides by 3 to isolate a
