What is factor a^{s-2}+a^{b-1} ?

The solution to factor a^{s-2}+a^{b-1} is (a^s+a^{b+1})/(a^2)

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factor a^{s-2}+a^{b-1}

factor

a^{s - 2} + a^{b - 1}

\frac{a ^{s} + a ^{b + 1}}{a ^{2}}

Solution steps

a^{s - 2} + a^{b - 1}

Apply exponent rule:

a^{b + c} = a^{b} a^{c}

= a^{- 2} a^{s} + a^{- 1} a^{b}

Apply exponent rule:

a^{b + c} = a^{b} a^{c}

a^{- 1} = a^{- 2} a

= a^{s} a^{- 2} + a^{b} a^{- 2} a

Factor out common term

a^{- 2}

= a^{- 2} (a^{s} + a^{b} a)

Refine

= \frac{a ^{s} + a ^{b + 1}}{a ^{2}}

(- x) + (- y)

\frac{1 ab}{1 a c - 1 a}

\frac{d}{d x} (7 e^{x} - 7 e^{x + h})

φ (1.0053)

(2 y^{2}) d y

What is factor a^{s-2}+a^{b-1} ?
The solution to factor a^{s-2}+a^{b-1} is (a^s+a^{b+1})/(a^2)