Question

can any one can please solve my above mentioned sum please ​

Answer 1

Answer:

${430}^{2} = (400 + 30)^2 \\ = {400}^{2} + 2 \times 400 \times 30 + {30}^{2} \\ = 160000 + 24000 + 900 \\ 184900$

Answer 2

Answer:

(430)^2=(400+30)^2

=(400)^2+(30)^2+2×400×30

=160000+900+24000=184900