exam
Maths Puzzle
Numerical Ability
I need help simplifing 2*square root 12 + 4*square root 27
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exam Other Question
6x^2+5x-6>0
Which of the following polynomials is NOT a perfect square trinomial?
x2 + 2x + 1
4x2 - 4x + 1
x2 + 3x + 9
16x2 + 8x + 1
all of them are perfect square trinomials