Question

1. Factorize the following
(i) x2 + 11x + 24
(ii) x2 + 4x - 7
(iii) 2x2 + 10x + 8
(iv) x2 + 14x + 45
(v) p2 + 14p + 48
(vi) y2 – 15y + 56
(vii) u? + 11x – 26
(viii) p2 – 9p - 36
(ix) z2 + 6z + 12​

Answer 1

Answer:

1)

x^+11x+24

x^+8x+3x+24

x(x+8) + 3(x+8)

(x+8) (x+3)

x=-8 and x=-3

2)

this can be done by using formulae

-b±√b^-4ac/2a

here b=4 and a=1 and c=-7

now, -4±√4^-4(1)(-7)/2(1)

-4±√ 16+28/2

-4±√54/2

now the roots are -4+√54/2and -4-√54/2