exam Maths Puzzle Numerical Ability

can you help me simplify by using property 2?

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exam Other Question

I need help with the following problems:

Factor:
6a^2b^3-3a^2b

Solve:
(3x^2y^3)^2 / xy

Solve:
3x-2=2y and y=3z+5
what is equal to x

Solve:
Distance between the poi
Can someone please help me I don't understand it....

Directions: Find all positive values for K for which each of the following can be factored.

Problem#1

x^2 + x - k

D