exam Maths Puzzle Numerical Ability

trying to figure out how to work the problem out my soultion to #54 was x=-3+/- square root of 14,
#74, my answer came out to be 1+/-i and 8 under the square root,

#108, my answer was x= 4 +/- and 6 under the sqaure root

Read Solution (Total 0)

exam Other Question

I am hoping one of the tutors has the text (Basic Technical Mathematics with Calculus 8th Edition)to help me.
It is #50 page 243. Diagram is necessary and I don't know how to show
Find the vertex, line of symmetry, maximum or minimom value of f(x)=1/2(x+4)^2+4