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Harman [31]
3 years ago
10

Which expression is a factor of 21x2 + 13x – 20?

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer: 7x-5

Step-by-step explanation:

Assuming the expression is 21^2 + 13x -20.

(7x-5)(3x+4)

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2 years ago
Find the derivative of sin2X<br>​
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Step-by-step explanation:

Derivation using Product rule : -

To find the derivative of f(x) = sin 2x by the product rule, we have to express sin 2x as the product of two functions. Using the double angle formula of sin, sin 2x = 2 sin x cos x. Let us assume that u = 2 sin x and v = cos x. Then u' = 2 cos x and v' = -sin x. By product rule,

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5 0
2 years ago
Read 2 more answers
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