exam Maths Puzzle Numerical Ability

SQUARE ROOT 4X^2 +12x+1 -6X=9
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THE 4X^2+12X+1 IS ALL UNDER THE SQUARE ROOT SIGN -6X=9



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exam Other Question
(-7)^2= Let R(x)=x^3-7/x^2+1; what happens to R(x) if we now have R(x)-3?

a. It shifts 3 units to the left
b. It shifts 3 units down
c. It shifts 3 units to the right
d. It shifts 3 units up