Math, asked by annacasmir2006, 3 months ago

(x+y)2 =x2+2xy+y2 using this find 98 ^2​

Answers

Answered by samcletus2006
2

Step-by-step explanation:

(90+8)²=90²+2*90*8+8²

8100+1440+64

9604

Answered by Sarubeck
1

Answer:

9604

Step-by-step explanation:

 {98}^{2}

using \: formula

 {(x + y)}^{2}  =  {x}^{2}  + 2xy +  {y}^{2}

we \: get

 {(90 + 8)}^{2}

 =  {(90)}^{2}  + 2 \times 90 \times 8  \: +  {(8)}^{2}

 = 8100 + 1440 + 64

 = 9604

therefore \:

 {(98)}^{2}  = 9604

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