Answer:
14100
Step-by-step explanation:
Step-by-step explanation:
We have to get one positive 7y so,
4x-7y=5
9x-7y=-15
multiply anyone of the equation by -1. I choose the first one so,
4x+7y=-5
9x-7y=-15
we can now cancel the y's so the equation will be left with
-4x=-5
9x=-15
add the equations
5x=-20
divide by 5 n u get
x=-4
now plug in the x value in any one of the
equations
I choose the first one so,
4(-4)-7y=5
-16-7y=5
add 16 to both sides
-7y=21
divide by -7
y=-3.
finally check.
Answer:
Given equation: 
when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;
∵8 is the value 
Notice that, we add this both sides so that it maintains the equality.
then;
[ 
]
Simplify:
The number must be added to complete the square is, 
Answer:
Step-by-step explanation: you just need to find the greatest factors and least multiple then do it to two numbers
Answer:
ans = 112
Step-by-step explanation:
Hope it will help
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