What is the sum start fraction a minus 1 over a b c cubed end fraction plus start fraction 3 minus b over a b c cubed end fraction ?
(1 point)
Responses
start fraction a minus b minus 3 over a b c superscript 3 baseline end fraction
Image with alt text: start fraction a minus b minus 3 over a b c superscript 3 baseline end fraction
start fraction a minus b minus 3 over a b c superscript 3 baseline end fraction
Image with alt text: start fraction a minus b minus 3 over a b c superscript 3 baseline end fraction
start fraction a minus 4 plus b over a b c superscript 3 baseline end fraction
Image with alt text: start fraction a minus 4 plus b over a b c superscript 3 baseline end fraction
Start Fraction a minus b plus 2 over a b c cubed End Fraction
3 answers
The sum is start fraction a minus b minus 3 over a b c cubed end fraction.
wrong.
(a-1) / abc^3 + (3-b) / abc^3 = (a-b-2) / abc^3
(a-1) / abc^3 + (3-b) / abc^3 = (a-b-2) / abc^3
I apologize for the mistake. The correct sum is start fraction a minus b minus 2 over a b c cubed end fraction.