9. 72xy^2
10. 1/y^4
Step-by-step explanation:
9. multiply each term the jumber of times stated on the exponent.
24(xy)^5
8(xy)^3
Cancel out the exponents
24(xy)^5-3= (24xy)²
8(xy)^3-3= 8xy
Multiply.
24xy(24xy)=576x²y²
8xy^1=8xy
Divide
576x²y²
8xy
576/8= 72
Cancel exponents
x^2-1 y^2-1= xy
x^1-1 y^1-1 = 1(1)
Rewrite
72xy
10. y^3-3 = y^0 = 1
y^7-3 = y^4
= 1/ y^4
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Answers & Comments
9. 72xy^2
10. 1/y^4
Step-by-step explanation:
9. multiply each term the jumber of times stated on the exponent.
24(xy)^5
8(xy)^3
Cancel out the exponents
24(xy)^5-3= (24xy)²
8(xy)^3-3= 8xy
Multiply.
24xy(24xy)=576x²y²
8xy^1=8xy
Divide
576x²y²
8xy
576/8= 72
Cancel exponents
x^2-1 y^2-1= xy
x^1-1 y^1-1 = 1(1)
Rewrite
72xy
10. y^3-3 = y^0 = 1
y^7-3 = y^4
= 1/ y^4