Answer:
1st fig ans=12x ^2-7x-21.
2nd fig ans
i) ( x-15)(x+2)
ii) 2(x+7)(x-9)
iii) -3x(2x+1)(5x-3)
Hope it will help uh....
1C 2 D 3 c
Step-by-step explanation:
1, X^2-13x-30
X^2-15x+2x-30
X(x-15)+2(x-15)
(X+2)(x-15)
2, 2x^+4x-126..... Simplified As
(2x-14)(x+9)
3, -30x^3+3x^2+9x ..... Simplified as
-3x(2x+1)(5x-3)
