exam Maths Puzzle Numerical Ability

how many real solutions are there for 0= x to the second power + 8x + 16

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exam Other Question

Could yoou help by determining whether these ordered pairs are solutions to the inequality: y<-x-2
(-1,-1), (0,0), (4,-5)

A) yes,yes,yes
B) yes,no.yes
C) no,yes,no
D) no,no, 1. Find the difference quotient for f(x) = x^2 - 2x -3

f(x) = 3x^2-1 and g(x)= 1/x+2

2. f/g x doesnt equal _________