Math, asked by Shaurya28, 1 year ago

factorise 15x^2-19x+22

Anonymous: there should be -20 check ur question if there is not - 20 then this would have no real roots

Anonymous: 22*

Shaurya28: it would since 30 and 11 make 19. thus the condition for splitting the middle term is justified and complete

Anonymous: you only need splitting

Shaurya28: when subtracted* 30 and 11 make 19

Anonymous: but this would have no real roots

Answers

Answered by Anonymous

Equation is
15x^2 - 19x +22
D = b2- 4ac

D = (-19)^2 - 4×15×22
D = 361- 1320.
D will be negative thus it will not have any real roots.

and it can't be factorised since
30 - 11 make +19 and product will be -330.
and 11- 30 makes -19 and product will be again -330.

but it should be positive.

Answered by fatmisana4

15x2-19x-22

15x²-30x+11x-22

15x(x-2)+11(x-2)

(x-2)(15x+11)

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