Question

Find the products of the following

Answer 1

Before, we may recall the identity,

(a + b + c)(a² + b² + c² - ab - bc - ac) = a³ + b³ + c³ - 3abc

Here, let,

a = 2x

b = - y

c = 3z

Then,

(2x - y + 3z)((2x)² + (-y)² + (3z)² - (2x · -y) - (-y · 3z) - (2x · 3z)) = (2x)³ + (-y)³ + (3z)³ - (3 · 2x · -y · 3z)

(2x - y + 3z)(4x² + y² + 9z² + 2xy + 3yz - 6xz) = 8x³ - y³ + 27z³ + 18xyz

Hence the answer is, 8x³ - y³ + 27z³ + 18xyz.

#answerwithquality

#BAL

Answer 2

Answer:

answer is in the picture