book
Maths Puzzle
Numerical Ability
7
___
z^2
minus
9
____
Z
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book Other Question
Does this quadratic equation have a solution and how do I justify?
1. p2-4p+4=0, 2.m2+m+1=0, 3. 3z2+z-1=0
SCRATCH WORK PLEASE
5x+t=17
7x-k=8
4-2x=g
15+3x=u
a+6x=c
b-7x=n
ax-b=k
hx+j=r
2x=4a+2b