Question

(3.4 x 10^-15) +(8.1 x 10^-14) help please, show work thank you

Answer 1

see below

Explanation:

1) Use Negative Power Rule:
`x^(-a) =(1)/(x^(a) )`.

`3.4x*(1)/(10^(15) ) +8.1*x*10^(-14)`

2) Use Negative Power Rule:
`x^(-a) =(1)/(x^(a) )`.

`3.4x*(1)/(10^(15) ) +8.1*x*(1)/(10^(14) )`

3) Use this rule:
`(a)/(b) *(c)/(d) =(ac)/(bd) .`

`(3.4x*1)/(10^(15) )+8.1*x*(1)/(10^(14) )`

4) Simplify
`3.4x*1` to
`(3.4)x`.

`(3.4x)/(10^(15) ) +8.1*x*(1)/(10^(14) ) }`

5) Use this rule:
`(a)/(b) *(c)/(d) =(ac)/(bd) .`

`(3.4x)/(10^(15) ) +(8.1*x*1)/(10^(14) )`

6) Simplify
`8.1*x*1` to
`8.1(x)`.

`(3.4x)/(10^(15) ) *(8.1*x)/(10^(14) )`