exam Maths Puzzle Numerical Ability

what is the answer to: 3a squared + 21a + 30

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exam Other Question

problem: The two numbers whose sum is -10 and product is 24 are? a) solve equation y = -16t + (v*t*sin( heta))+ h for t in terms of y, v, h, and heta.

b) use result from a) to calculate t when h=3, v=25, and heta=0,5,10,...,60