Question

solve by factorization :9 x square-3x-20=0​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

$\huge{\boxed{\sf{x=\frac{5}{3}\:and\frac{-4}{3}}}}$

Step-by-step explanation:

$\huge{\boxed{\sf{SOLUTION-}}}$

$\huge{\boxed{\sf{METHOD\:TO\:SOLVE\:THIS}}}$

${9x}^{2} - 3x - 20 = 0 \\ d = {b}^{2} - 4ac \\ d = { - 3}^{2} - 4(9 \times - 20) \\ d = 9 - 4( - 180) \\ d = 9 + 720 \\ d = 729 \\ again \\ x = \frac{ - b + \sqrt{d} }{2a} \\ x = \frac{3 + 27}{18} \\ x = \frac{30}{18} \\ x = \frac{5}{3} \\ x = \frac{ - b - \sqrt{d} }{2a} \\ x = \frac{3 - 27}{18} \\ x = \frac{ - 24}{18} \\ x = \frac{ - 4}{3}$

$\huge{\boxed{\sf{x=\frac{5}{3}\:and\frac{-4}{3}}}}$