(a) Given the expression \(y = ax^{2} - bx - 12\) , find the values of x when a = 1, b = 2 and y = 3. (b) If \(\sqrt{x^{2} + 1} = \frac{5}{4}\), find the po...

Question 1 Report

(a) Given the expression \(y = ax^{2} - bx - 12\) , find the values of x when a = 1, b = 2 and y = 3.

(b) If \(\sqrt{x^{2} + 1} = \frac{5}{4}\), find the positive value of x.

Answer

Surds (radicals)

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