Question

What is the simplified form of (–3x3y2)(5xy–1)?
a.)–15x3y2
b.)–15x4y
c.)15x4y

Answer 1

you mean \[-3x ^{3}y ^{2}(5xy -1)\]

Answer 2

Yess. I forgot to put the "^" mark to show that. Thanks. lol.

Answer 3

And same for the answer choices. lol...

Answer 4

-3 times 5 = -15

so it's either A or B

to multiply the variable terms, add the corresponding exponents

x^3 times x = x^3 times x^1 = x^(3+1) = x^?

y^2 times y^(-1) = y^(2 + (-1)) = y^(2 - 1) = y^?

Answer 5

Thankyou.