Question

Find the product of the terms.

(i) -2mn, (2m)², -3mn

(ii) 3x²y, -3xy³, x²y²

Answer 1

(i) (-2mn) × (2m)² × (-3mn) 

= (-2mn) × 2² m² × (-3mn) 

= (-2mn) × 4m² × (-3mn)

= (-) (+)(-) (2 × 4 × 3) (m × m² × m) (n × n)

= + 24 m⁴ n²

(ii) (3²y) × (-31xy³) × (x²y²) 

= (+) × (-) × (+) × (3 × 3 × 1) (x² × x × x²) x (y × y³ × y²)

= -9x⁵y⁶