exam Maths Puzzle Numerical Ability

Find the foci of a hyperbola with the equation 9y2 - 72y - 16x2 - 64x - 64 = 0

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exam Other Question

I need help finding the zeros of the function algebraically.
f(x)=2x2-7x-30 Please help me solve this equation. M-1/6=M/4+1

Multiply thru by 24. 24M-4 = 6M+24. Collect terms: 18M = 28. M = 14/9.