Question

Factorise:
1. 4x(5y + 8) + 7(5y + 8)​

Answer 1

Answer:

Simplifying

4x + -5y + -8 = 7

Reorder the terms:

-8 + 4x + -5y = 7

Solving

-8 + 4x + -5y = 7

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.

-8 + 4x + 8 + -5y = 7 + 8

Reorder the terms:

-8 + 8 + 4x + -5y = 7 + 8

Combine like terms: -8 + 8 = 0

0 + 4x + -5y = 7 + 8

4x + -5y = 7 + 8

Combine like terms: 7 + 8 = 15

4x + -5y = 15

Add '5y' to each side of the equation.

4x + -5y + 5y = 15 + 5y

Combine like terms: -5y + 5y = 0

4x + 0 = 15 + 5y

4x = 15 + 5y

Divide each side by '4'.

x = 3.75 + 1.25y

Simplifying

x = 3.75 + 1.25y

Step-by-step explanation:

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Answer 2

Answer:

(5y + 8 ) ( 4x+7 )

Step-by-step explanation:

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