Question

Use formula
$(a + b)(a - b)$
​

Answer 1

$\bold{\boxed{(a-b) (a+b) = a^2 - b^2}}$

So,

1.05 = 1 + 0.5

and

9.5 = 1 - 0.5

1.05 * 9.5

= (1 + 0.5) (1 - 0.5)

= (1)^2 - (0.5)^2

= 1-(0.25)

= $\bold{\huge{\boxed{\red{0.75}}}}$$\bold{(Ans)}$

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MAY THIS HELP U MY FRND!!☺️✌️♥️♥️