Question

fully simplify.
$-15x^{2}(x^{5}y^{4})$

Explanation:

Step1: Multiply coefficients

$-15 \times 1 = -15$

Step2: Combine $x$-terms via exponent rule

$x^2 \times x^5 = x^{2+5} = x^7$

Step3: Keep $y$-term unchanged

$y^4$ remains as is

Step4: Combine all terms

Multiply the results from steps 1-3 together

Answer:

$-15x^7y^4$