Question

(5x^2y)(3x^4)

Answer 1

hint: when you multiply same bases you should add their exponent \[\huge\rm x^m \times x^n = x^{m +n }\]

Answer 2

Another Hint:

If they don't have the same bases, leave it like it is.

Answer 3

\[(5x ^{2}y)(3x ^{4})\]
You multiply the coefficients 5 and 3 then multiply the variables.
\[x ^{m} \times x ^{n} = x ^{m+n}\]
\[x ^{2} \times x ^{4} = x ^{2+4}\]
\[x ^{n} \times y ^{m} = x ^{n}y ^{m}\]