Question

Prove that 2x –5 is a factor of 4x2 - 4x –15., Hence, factorize 4x² - 4x – 15,completely​

Answer 1

Step-by-step explanation:

To prove first substitute the value of X in the above equation,

${4( \frac{5}{2} }^{2} ) - 4( \frac{5}{2} ) - 15 \\ 25 - 10 - 15 = 0$

hence the 2x-5 is a factor of the equation and now to factorise, use long division method.

Answer 2

Answer:

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