Math, asked by nn1710447, 1 month ago

20. Solve by using formula
a) 3x2 - 7x- 6 = 0 b) √3x²-2√3 = 2√2x c) 4x2-196=0

Answers

Answered by Bhuvanashri

0

Step-by-step explanation:

a) 3x² - 7x - 6 = 0

3x² - 9x + 2x - 6 = 0

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

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

3x + 2 = 0. or x - 3 = 0

x = -2/3. or x = 3

c) 4x² - 196 = 0

4x² = 196

x² = 49

x = 7

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