Math, asked by evelynknn, 5 months ago

(2hr + 7da) (2hr - 7da) *

4hr² - 49 da²
4h²r² - 49 d²a²
4h²r - 49 d²a

Answers

Answered by anuragchaudhary2121

2

Step-by-step explanation:

it is a sign of square(^)

(2hr+7da)(2hr-7da)

2hr(2hr-7da)+7da (2hr-7da)

4h^r^-14dahr+14dahr-49d^a^

4h^r^-49d^a^(Answer )

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