Question

(11.1)² - (9.9)²
please give me the answer for this question using this formula
x² - y² = (x + y ) ( x - y)

please
please​

Answer 1

Answer:

the answer is 2xy

Step-by-step explanation:

because (x+y)^2=(x+y)(x+y)

=x^2 +y^2+2xy

Answer 2

Answer:

using formula

Step-by-step explanation:

(11.1)² - (9.9)²

(11.1 +9.9)((11.1 -9.9)

(20)(2)

answer- 40

I hope it is helpful for you

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