Solve the following quadratic equations properly

'- "" __ "___ _ 'l "_' '_ _ Given that 2541:2 Ex+ k is a perfect square. Find the value of k. [2 mks} . . 2 y 3 .1}? x2 Sun 1 Bmks p 1e 2e _ 2y; { 1 Solve the following quadratic equation giving your answer tn 3 lip. (Emits) E i2 120 = e. x x Simplify (3 mks] 1st - 4 + 2x 2 4x1 + 2x 2 x + l {4x+2y}3 -[2}|-4x)2 1 1 (3 my new? -Lv-1r}' Simplify as simple as possible 3. Solve the following quadratic equation giving your answer to 3 d.p. (3mks) 23 120 = 0. X 4. Simplify (3 mks) 16x2 - 4 2x - 2 4x + 2x - 2 x +1 5. Simplify as simple as possible (4x + 2y)' -(2y-4x)2 (3 mks) (2z + y) - () -2x)* 6. In a triangle ABC, angle B is 90". Find the value of x and hence the area of the triangle A (3x + 5)cm (7x + 2)cm B V611 7. Solve the following inequalities and represent the solution on a number line hence state the integral values 7x - 4 5 9x + 2