Simplify the following expression and justify each step in your simplification. 5(7-x)+6x(3x+4)

The simplified form of the given expression is .

Step-by-step explanation:

The given expression is

We need to find the simplified form of the given expression.

Using distributive property we get

On further simplification we get

On combine like terms.

Therefore the simplified form of the given expression is .

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐