4(2x-7)=8x-28
4(-4x+18)=-16x+72
(8x-28)-(-16x+73)
24x+45
We have that
x²<span> + 7x + c
</span><span>Group
terms that contain the same variable
</span>(x² + 7x )+ c
<span>Complete
the square. Remember to balance the equation
</span>(x² + 7x+3.5² )+ c-3.5²
Rewrite as perfect squares
(x+3.5)²+ c-3.5²
so
c-3.5² must be zero
c-3.5²=0------- c=3.5²------> c=12.25
the answer isthe value of c must be 12.25
Answer:
a
Step-by-step explanation:
6^2+8^2=100
sqrt of 100 = 10
The equations standered form is y=-x^2/8-x/2-9/2
Answer:
The answer is 36.
Step-by-step explanation:
36
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6 6
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3 2 3 2
