Question

Help please combine like terms

Answer 1

-18x^6y^12

Explanation:

multiply like terms out, multiply x by x, y by y and numbers by numbers

reminder: when exponents are being multiplied, you add them, you multiply exponents when there's an exponent being brought to an exponent

-18x^6y^12

if you don't understand anything feel free to ask ♡

Answer 2

-18x^6y^12

Explanation:

9 × -2 = -18

x^4 × x^2 = x^6

y^5 × y^7 = y^12