exam
Maths Puzzle
Numerical Ability
Factor completely: (a+b)^2-5(a^2-b^2)+4(a-b)^2
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exam Other Question
i have a wksht ???..can you still help me?
Solve the following system of equations:
4x-y=3
2x+3y=5
i got x=-7/9
y=-29/7
i dont think what i have is right
how do i write an complete proof be rearranging the reasons listed on the pieces of paper
reasons:
1transitive property of segment congruence
2addition property of equality
3