exam Maths Puzzle Numerical Ability

How many real solutions does this equation have?
(x^2-9x+19)^(2x^3-x^2-10x)=1

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exam Other Question

this is question number nine a up to question is what I have to do for homework and, well I was in the groove at school and now I have lost the groove and have completely forgotten hoe to do it!.

please help

Bethaney problem 24 in our self practice i need help

complete the ordered pairs so that each is a solution for the given equation

3x +4y =12 (0, ) , ( ,3 over 4) , ( ,0) , (8 over 3, )