exam
Maths Puzzle
Numerical Ability
please help me solve this equation: {{{(3x-45/-4-8x)(4x^2-1/-x+15)}}}
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exam Other Question
8.
Prove that the line y=2x is a tangeent to the circle xsquared + ysquared -8x -y +5 =0
could some one please show me how to od this thanks :D
x-4 + x-3
_____ ______
x2-4x-5 x2-25