Using identities- evaluate 78 - 82

The correct option is A 6396 nbsp; nbsp; 78× 82 =(80 2)(80+2) [Using : (a b)(a+b)= a^2 b^2 ] =80^2 2^2 =6400 4 =6396 ...

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Expansion of (x^2 - y^2)

Using identit...

Question

Using identities, evaluate $78 \times 82$

6396

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Similar questions

78 \times 82

78 \times 82

78 \times 82

Using identities, evaluate.

(i) 71² (ii) 99² (iii) 102² (iv) 998²

(v) (5.2)² (vi) 297 × 303 (vii) 78 × 82

(viii) 8.9² (ix) 1.05 × 9.5

71^{2}

99^{2}

102^{2}

998^{2}

{5.2}^{2}

297 \times 303

78 \times 82

{8.9}^{2}

1.05 \times 9.5

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