Question

EXERCISE 4.3
Find the roots of the following quadratic equations, if they exist, by the method of
completing the square:
(1) 2r-7x+3=0
(ii) 2x² + x-4=0
(iii) 4x² +473x + 3 = 0
(iv) 2x² + x +4=0
Find the roots of the quadratic equations given in Q.1 above by applying the quadrati
Formula.​

Answer 1

Answer:

2x2 – 7x + 3 = 0⇒ 2x2 – 7x = - 3On dividing both sides of the equation by 2 , we get⇒ x2 – 7x/2 = -3/2⇒ x2 – 2 × x × 7/4 = - 3/2On adding ... (iii) 4x^2 + 4(3x)^0.5 + 3 = 0