Question

pls ans me

express
$(x {}^{2} - 5x + 7)(x {}^{2} + 5x - 7)$
as a difference of two squares...​

Answer 1

Answer:

(x²)² - (5x - 7)²

Step-by-step explanation:

Equation is (x² - 5x + 7)(x² + 5x - 7)

We can write the same equation as,

=> (x² - (5x - 7))(x² + (5x - 7))

=> (x²)² - (5x - 7)²

Hence, difference of two squares = (x²)² - (5x - 7)².

#Hope my answer helped you!

Answer 2

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Refer the attachment.