Question

1. અવયવો પાડો :
( 1 ) xy + xz + yz + z²
(3 ) x² + 2x + xy + 2y
(5) xy - 4x + 3y - 12​

Answer 1

Answer:

(1) xy + xz + yz + z² = x(y + z) + z(y + z)

= (y + z)(x + z)

(2) x² + 2x + xy + 2y = x(x + 2) + y(x + 2)

= (x + 2)(x + y)

(3) xy - 4x + 3y - 12 = x(y - 4) + 3(y - 4)

= (y - 4)(x + 3)