exam Maths Puzzle Numerical Ability

For what integral values of k can 4x^2+kx+3 be factored over the integers?

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exam Other Question

My function is y= -X2-4x-3, the x2 is x squared, couldnt make the 2 small. i need to know how to make a x,y table and grapgh the parabola, thanks A backyard has dimensions 1 1/2 yards by 2 4/5 yards. What is the area of the back yard in square yards (yd2)?
Can anyone help me please?