exam Maths Puzzle Numerical Ability

Find m(x+h)-m(x)/h with the given m(x)=2x^2+5x+3

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exam Other Question

Use the properties of logarithms to expand.
log(4 lower)xy^3/z

Any and all help would be appreciated Did I do this problem correctly?

solve by using quadratic formula

x^2-4X-60=0

x=1(-4)+- radical 4^2+4*1*(-60)/2*1