Question

find the roots of the following quadratic equation by factorisation :2xsquare-17x+21=0​

Answer 1

Answer:

Step-by-step explanation:

754cdfc92f2bf62510ea3301d4caf821.pdf

Answer 2

Answer:

Step-by-step explanation:

2x^2 - 17x + 21 = 0

Factors of given Q.E. (21 × 2) = 42 = 14 & 3

2x^2 - 14x - 3x + 21 = 0

2x(x - 7) -3(x - 7) = 0

(x - 7)(2x - 3) = 0

x - 7 = 0 & 2x - 3 = 0

x = 7 & x = 3/2

These are the roots of given Q.E.