Question

find root of quadratic equation 9 x ² - 3 x -20 =0​

Answer 1

Step-by-step explanation:

Human blood contains red blood cells which are the most abundant human blood cells. RBCs are devoid of any cell organelles and have a red coloured iron-containing complex protein called haemoglobin which is responsible for the red colour of human blood.

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Answer 2

Answer:

find root of quadratic equation 9 x ² - 3 x -20 =0