Maths Quadratic Equations Exercise 7

Quadratic Equations Exercise 7

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Q1 Solve the following (1 to 12) equations:
(i) x² - 11x + 30 = 0
(ii) 4x² -25 = 0

Q2 (i) 2x² - 5x = 0
(ii) x² - 2x = 48

Q3 (i) 6 + x = x²
(ii) 2x² + 3x + 1= 0

Q4 (i) 3x² = 2x + 8
(ii) 4x² + 15 = 16x

Q5 (i) x (2x + 5) = 25
(ii) (x +3) (x - 3) = 40

Q6 (i) (2x + 3) (x - 4) = 6
(ii) (3x + 1) (2x + 3) = 3

Q7 (i) 4x² + 4x + 1 = 0
(ii) (x - 4)² + 5²= 132

Q8 (i) 21x² = 4(2x + 1)
(ii) 2/3 x2 - 1/3 x - 1 = 0

Q9 (i) 6x + 29 = 5/x
(ii) x + 1/x = 2(1/2)

Q10
(i) 3x - 8/x = 2
(ii) x/3 + 9/x = 4

Q11

Q12

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