Question

(ii) evaluate (998)2 – (2)2​

Answer 1

$\huge{\mathfrak{\pink {Solution :-}}}$

$\underline{\bold{Given:}}$

• Evaluate :$(998)^2 -(2)^2$

We know that :

• $a^2 -b^2 = (a - b)(a + b)$

Now we are going to evaluate :

Here, a = 998 and b =2.

$\longrightarrow \: (998)^2 -(2)^2 \\ \longrightarrow (998 - 2)(998 + 2) \\ \longrightarrow 996 \times 1000 \\ \longrightarrow 996000$

$\green {\therefore{\bf{(998)^2 -(2)^2=996000}}}$

Answer 2

Answer:

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