exam Maths Puzzle Numerical Ability

find the two-digit number whose tens digits is 4 less than its units digits if the original number is 2 more then 3 times the sum of the digits

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exam Other Question

I am having trouble obtain the correct answer for solving the following information:

F(x)= 2x^2 - 7x - 4

use the vertex and intercepts to sketch the graph of each quadratic f
(3x^3+17x^2+15x+2)/(x+5)

Use long division to Solve Please!