Solve the question:(i) ax2 + bx(ii) 7p2 + 21q2(iii) 2x3 + 2xy2 + 2xz2

1.	Solve the question:(i) ax2 + bx(ii) 7p2 + 21q2(iii) 2x3 + 2xy2 + 2xz2
Answer» (i) ax² + bx = a × x × x + b × x = x(ax + b) (ii) 7p² + 21q² = 7 × p × p + 3 × 7 × q × q = 7(p² + 3q²) (iii) 2x³ + 2xy² + 2xz² = 2x(x² + y² + z²)

Answer»

(i) ax² + bx

= a × x × x + b × x

= x(ax + b)

(ii) 7p² + 21q²

= 7 × p × p + 3 × 7 × q × q

= 7(p² + 3q²)

(iii) 2x³ + 2xy² + 2xz²

= 2x(x² + y² + z²)

Discussion