Question

could u any one explain that box in image​

Answer 1

Answer:

Step-by-step explanation:

• in the first line of the box, they have changed -4x into x-5x to get two terms.

• in the second line, they have factorised the terms with the two groups of terms x² + x and -5x -5.

• x² +x can be factorised as:

(X × X) + (1 × X) [now we can take out the similar terms and put the remaining terms in the bracket]

x (x+1)

• -5x -5 can be factorised as:

(-5 × X) - (5 × 1) [now we can take out the similar terms and put the remaining terms in the bracket]

-5 (x+1)

• now, when we put together the factorised terms, we get:

x (x+1) - 5 (x+1)

• now, we have to put the numbers outside together in a bracket. We come to the result as:

(x+1) (x-5)

Hope it is helpful! Please mark me as the Brainliest for my efforts.