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1 year ago

What is the answer for this question 5 + (x^2 - xy) - 4

Mathematics

1 answer:

zzz [600]1 year ago

3 0

Answer: x^2−xy+1

Step-by-step explanation:

simplify:

5+x^2−xy−4

5+x^2+−xy+−4

Combine Like Terms:

5+x^2+−xy+−4

(x^2)+(−xy)+(5+−4)

x^2+−xy+1

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Answer:

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2 years ago

2. The sum of the measures of angle X and angle Y is 90. If the measure of angle X'is 30 less than

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Answer:

The measure of angle x is 50 degrees

Step-by-step explanation:

we know that

$x+y=90$ ----> equation A

$x=2y-30$ ----> equation B

solve the system by substitution

substitute equation B in equation A

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solve for y

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