Question

expand the linear expression 5(3x + 3)

Answer 1

Answer:

5(3x+3)

5(3x) + 5(3)

15x+ 15

this is the expand linear expression.

sol. 15x+15=0

x=-15/15

x=-1

this is the solution of this linear expression

Answer 2

Step-by-step explanation:

We know, (a - b)³-a3-b3-3ab(a - b)

and (a - b)3 = a³-b3-3a2b+3ab2.

Then,

(5-3x)3

= (5)³+(-3x)³ +3.5.(−3x)(5—3x)

= 125-27x3+3.5.(-3x)(5-3x)

= 125-27x3-45x(5-3x)

= 125-27x³-225x+135x2.