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3 years ago

What number should be added to the expression x2 + 2x to change it into a perfect square trinomial?

Mathematics

2 answers:

blondinia [14]3 years ago

6 0

1. In this way you get x^2+2x+1 which is (x+1)^2.

inysia [295]3 years ago

4 0

D 4
d4
D4
D 4
D:4
nubiuhbj

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4 years ago

Solve each equation for 0° < x < 360°.

Ipatiy [6.2K]

Answer:

Hence value for x is 0 degree

Step-by-step explanation:

Given:

x limits are (0 to 360) degrees and

Cos(x+45)+cos(x-45)=Sqrt(2)

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Solution:

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3 years ago

What is the x-intercept of the line with this equation<br><br> 8x - 1/3 y = 16 ?

777dan777 [17]

Answer:

x=2

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4 years ago

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Helen [10]

Answer:

See explanation

Step-by-step explanation:

The first pair is (-4 and 8)

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Again, the second pair is (-2 and 6). In that case, if we also add those two values, that is, 6 + (-2), we will get 4.

Finally, the third pair is (-1 and 5). Again, we will add the two values. 5 + (-1) = 4.

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3 years ago