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Algebra help evaluate expression

Algebra
Tutor: None Selected Time limit: 1 Day

(p^2)(-1^-3)^-2 * (p^-3)(-1^5)^-2

What is the value of the expression when p equals -2 and q equals -1

Sep 14th, 2014

[(p²)(-1⁻³)]⁻² x[(p⁻³)(-1⁵)]⁻²

Move the equation in the denominator to me the square bracket power positive

­ 1  .             x        ­ 1                .

[(p²)(-1⁻³)]²            [(p⁻³)(-1⁵)]²

Replace p by -2

1                 . x ­             1  .

[(-2²)(-1⁻³)]²       [(-2⁻³)(-1⁵)]²

1           . x   ­ 1                .

[(4 )(-1)]²       [(-1/8)(1)]²

1  .       x ­       1    .

[(-4)]²       [(-1/8)]²

1   . x ­   1  .

16        1/64

1   . x    ­ 64  .

16           1

Multiply both

64 

16 

4 ANS

 


Sep 14th, 2014

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