i need help

Question

(−8a^2 b^3)/(−2a^5 b^−4 )

 

i need help with this

Answer 1

Basically, when you have to simplify, use the collect the bases which are the same then 

• if these are being multiplied, add the exponents
• if these are being divided, subtract the exponent in the numerator by the exponent in the denominator

(-8a² b³)/(-2a⁵b^-4)= (-8)/(-2)(a^{2 -5})(b^3 -(-4))

 

= (4)(a^-3 )(b⁷)

 

= 4b⁷/a³

 

Answer 2

(−8a² b³)/(−2a⁵ b⁻⁴ )

 

     = (-8a^2-5 b^3-(-4))/(-2)

 

     = 4a^-3b⁷

 

     = 4b⁷/a³