exam
Maths Puzzle
Numerical Ability
Can someone please show me how this is done. The way I am doing it the teacher says is incorrect.
x^2 - 4x - 60 = 0
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exam Other Question
Solve each of the following systems by substitution.
16. 5x -2y = -5
y-5x = 3
20. 8x -4y = 16
y= 2x -4
28.) 4x -12y = 5
-x + 3y= -1
Graph Each Function and give the approximate coordinates of the vertex.
41. f(x)=x^2-x+9