Question

(1.3x + 1.9y) (1.3x - 1.9y)​

Answer 1

(1.3x+1.9y)(1.3x-1.9y)

We know that,(a+b)(a-b)=a²-b²

(1.3x)²-(1.9y)²

1.69x²-3.61y²

Answer 2

$\huge\star\bold\red{ANSWER}$

(1.3x + 1.9y)(1.3x - 1.9y)

using identity (a+b)(a-b)=a²-b²

we get,

=>(1.3x)²-(1.9y)²

=>1.69x²- 3.61y² ......ans.....

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