Expand
Rewrite as:
Apply law of indices
Expand
Apply negative power rule of indices
Expand
Expand
Evaluate like terms
Factor out x^2
Factor out -2
Divide by y
Split
Rationalize
Rationalize
Apply different of two squares to the denominator
Simplify
Expand
Split
Evaluate all roots
Expand
Factorize each
Factor out (r+3) in the numerator and (r + 6) in the denominator
Cancel out r - 2
Cancel out x
Expand the numerator of the 2nd fraction
Factorize
Factor out x - 7
Factor out 4 from 4x + 8
Cancel out x + 2
Factorize
Cancel out 3x
Take LCM
Expand
Rewrite as:
Express as multiplication
Express y^2 - 9 as y^2 - 3^2
Express as difference of two squares
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Answer:
8
Step-by-step explanation:
(p*-5)-2=-42
-5p-2=-42
-5p=-42+2=-40
-5p/-5=-40/-5
=8
Answer:
The number is 9.
Step-by-step explanation:
Using algebra, let c be the number you are finding.
2c -3 = 15
2c = 18
c = 9
Hence, the number is 9.
Answer:
you always put the number first no matter what. It's called the coefficient and always goes in front of the variable.