use the formula a2 b2 2ab a b 2 387, Numbers, General Mathematics

Question:Use the formula,`(a^2+b^2+2ab)=(a+b)^2`
`387 xx 387 xx +114 +2 xx 387 xx 114`

Answer `=(387)^2 + (114)^2 + 2 xx 387 xx 114`
`=(387 + 114)^2=(501)^2=(500 + 1)^2`
 `=(500)^2 + (1)^2 + 2 xx 500 xx 1`
`=250000 + 1 + 1000
  =251001

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Use the formula,`(a^2+b^2+2ab)=(a+b)^2` `387 xx 387 xx +114 +2 xx 387 xx 114`

Question:Use the formula,`(a^2+b^2+2ab)=(a+b)^2` `387 xx 387 xx +114 +2 xx 387 xx 114`