Question

2x²+11x-21 factorise
using identity
​

Answer 1

Answer:

Step-by-step explanation:

Hi Friend !!!

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2x²+11x-21

= 2x²+14x-3x-21

= 2x(x+7)-3(x+7)

= (2x-3)(x+7)

x = 3/2 ......OR......x = -7

Answer 2

Here is your answer

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