Question

1. fully simplify: $x^{3}y^{5}(-7x^{6}y^{7})$

Explanation:

Step1: Multiply coefficients

$1 \times (-7) = -7$

Step2: Combine $x$ terms (add exponents)

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

Step3: Combine $y$ terms (add exponents)

$y^6 \times y^2 = y^{6+2} = y^8$

Step4: Combine all simplified parts

$-7 \times x^7 \times y^8$

Answer:

$-7x^7y^8$