exam
Maths Puzzle
Numerical Ability
3x-5=x+3
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exam Other Question
I have a question on solving a problem on (solving systems using substitution)
the problem is: y=5x+5
y=15x-1 (solve using substitution)
Factor by grouping:
3cd – 6cy + 2xd – 4xy
which one of these is it?
1. (3c + 2x)(d + 2y)
2.(d – y)(3c + 4x)
3. (3c + 2x)(d – 2y)
4.prime