Question

The degree of the polynomial 8x² +3x-7x-25
B1) Find the zero of the polynomial 2x-7
2)Factorise by splitting the middle term
X+9x+18​

Answer 1

Step-by-step explanation:

8x²+3x-7x-25 : Its degree = 2

(B1) 2x-7

Let 2x-7 = 0

==> x = 7/2

Hence its zero is 7/2

(2) x²+9x+18

= x²+ 3x + 6x + 18

= x(x+3) 6(x+3)

= (x+6) (x+3)