Question

I give medals =]
find the indicated sums and differences
4/7x^2 - 3/2X^3

Answer 1

// is this what you have?

\[\frac{4}{7}*x^{2} - \frac{3}{2}*x^{3}\]

Answer 2

no, 7x^2 and 2x^3 are denominators

Answer 3

@tomo

Answer 4

ok

Answer 5

try giving them a common denominator of 14x^3

so you start with

4/(7x^2) - 3/(2X^3)

multiply the first term by (2x/2x) and the second term by 7/7 to get a common denominator of 14x^3.

then you can subtract the numerators and have a common denominator.