Question

calcule

a) 3m . 2m
b) 3x² . (-2x)
c) 15a³ : 5a
d) -4x⁴y : (-2x²y)
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Answer 1

a)

$3m \times 2m = {6m}^{1 + 1} = {6m}^{2}$

b)

${3x}^{2} \times ( - 2x) = { - 6x}^{2 + 1} = { - 6x}^{3}$

c)

$15 {a}^{3} \div 5a = {75a}^{3 - 1} = {75a}^{2}$

d)

${ - 4x}^{4} y \div ( - {2x}^{2} y) = + {8x}^{4 - 2} {y}^{1 - 1} = {8x}^{2}$