Respuesta :

catgirl29

Answer:

-18x^6y^12

Step-by-step explanation:

9 × -2 = -18

x^4 × x^2 = x^6

y^5 × y^7 = y^12

47annakendrickx

Answer:

-18x^6y^12

Step-by-step 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 ♡

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