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sweet [91]
3 years ago
5

How do i complete the square y= X2+8X-4

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0
For x²+bx+c, to complete the square, you add (half of b)²
b=8 in this case, so you add 4², which is 16
x²+8x+16-16-4
y=(x+4)²-20 is the final form.
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<u>Answer:</u>

5x = 100°

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<u>Step-by-step explanation:</u>

We are given a diagram with a straight line AC being intersected by another line BD and we are to find the two mentioned angles.

We know that the two angles (5x° and 4x°) are supplementary so their sum would be equal to 180°.

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2 years ago
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