Question

Q.NO.2) Factorise.
1) x2 + 3x+2
b) x2-9x+4​

Answer 1

Answer:

X2 + 3x + 2

X2 + (2+1) X + 2

X2+2x+X+2

X(X+2)+1(X+2)

X= -2 and X = -1

x² -9x + 4 = 0

D = ✓ 65

X= 9+✓65/ 2 or X = 9-✓65/2