Question

14 (3y - 5z)^2 - 21 (5z - 3y)^3​

Answer 1

Answer:

STEP

1

:

Equation at the end of step 1

((14•(3y-5z))•2)-(21•(5z-3y)•3)

STEP

2

:

Equation at the end of step 2

((14 • (3y - 5z)) • 2) - 63 • (5z - 3y)

STEP

3

:

Equation at the end of step 3

(14 • (3y - 5z) • 2) - 63 • (5z - 3y)

STEP

4

:

Equation at the end of step 4

28 • (3y - 5z) - 63 • (5z - 3y)

STEP

5

:

Pulling out like terms

5.1 Pull out 3y-5z

Note that 5z-3y =(-1)• 3y-5z

After pulling out, we are left with :

(3y-5z) • ( 28 * (-1) +( 63 * (-1) ))

Final result :

-91 • (3y - 5z)

Answer 2

Step-by-step explanation:

hope it helps you my ans is in the picture