Question

PLS HELP WILL MARK BRAINLIEST!!!! please include solution

Answer 1

Answer:

1.)

$12 {x}^{6} {y}^{9} {z}^{5}$

2.)

$- \frac{3}{4} {a}^{4} {b}^{7} {c}^{3}$

Step-by-step explanation:

1.) multiply the coefficients add the exponents

2.)