Question

Find the value Of b2 - 4ac if a =6,7 and c=2. a) 1. b) -1. c) 2. d) -2​

Answer 1

Correct Question :-

Find the value of b² - 4ac if a = 6 , b = 7 & c = 2

a) 1

b) - 1

c) 2

d) - 2

Solution :-

Given ,

• a ( coefficient of x² ) = 6
• b ( coefficient of x ) = 7
• c ( constant term ) = 2

By substituting the values of a , b & c in the given question we can have the value of b² - 4ac

➸ b² - 4ac

➸ 7² - 4 ( 6 ) ( 2 )

➸ 49 - 24 ( 2 )

➸ 49 - 48

➸ b² - 4ac = 1

Hence , b² - 4ac = 1

Answer 2

$\underline{\sf Correct\:Question:}$

Find the value of (b² - 4ac) if a = 6, b = 7 and c = 2

a) 1 ⠀b) - 1 ⠀c) 2 ⠀d) - 2

$\underline{\sf Answer:}$

⠀⠀⌬ a = 6

⠀⠀⌬ b = 7

⠀⠀⌬ c = 2

⠀

$\underline{\bigstar\:\textsf{According to the given Question :}}$

$:\implies\sf b^2-4ac\\\\\\:\implies\sf (7)^2-(4 \times 6 \times 2)\\\\\\:\implies\sf 49 - 48\\\\\\:\implies\sf 1$

⠀

$\therefore\:\underline{\textsf{Hence, Correct Answer is a) \textbf{1}}}.$