Question

Expand (5p2 minus 7q2)

Answer 1

Step-by-step explanation:

( 5p² - 7q² )

it is in the form of [ (a² - b²) = (a+b) (a-b) ]

here a = 5p and b = 7q

5p² - 7q² = (5p + 7q) (5p - 7q)

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Answer 2

Answer:

(√5p + √7q) (√5p -√7q)

Step-by-step explanation:

5p² - 7q²

= (√5p)² - (√7q)²

Since a² - b² = (a+b) (a-b)

=(√5p + √7q) (√5p -√7q)