exam
Maths Puzzle
Numerical Ability
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exam Other Question
Factor completely:
-25 + x to the second power
Find the x intercepts of f(x)=x^2+4x-21
a.-3,0 and 7,0
b.-7,0 and 3,0
c.0,-3 and 0,7
d.-11,0 and 10,0