book Maths Puzzle Numerical Ability

State the solution set using interval notation and graph the solution set.
2v^2+7v<4

and
x^2+x>0

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book Other Question

how would i solve this problem (6W cubed y to the 4)(-2y squared)(5W to the 5th power y) explain why function y=x square has no inverse.suggest how many inverse can you
define for it