Question

Factorise 21x square + 16x + 5

Answer 1

Answer:

${21x}^{2} + 16x + 5$

${21x}^{2} + 21x - 5x + 5$

-21x(x-1)-5(x-1)

-(21x+5)(x-1)

here is your answer.

Answer 2

Step-by-step explanation:

21x² + 16x + 5

-21x² + 21x - 5x + 5

21x (-x+1) - 5(x- 1)

-21x (x- 1) - 5(x-1)

- (21x-5) (x-1)

-(21x + 5) (x-1)