Question

Multiply and then verity:
-3xy2 and (x - 2y) for x = 1 and y = 2.​

Answer 1

Answer:

$i) \: - 3x {y}^{2}$

$x = 1 \: and \: y = 2$

$- 3 \times 1 \times {2}^{2}$

$- 3 \times 1 \times 4$

$- 12$

$ii) \: (x - 2y)$

$(1 - 2 \times 2)$

$(1 - 4)$

$( - 3)$