Question

1) (109)square, 2) 48*52

Answer 1

Heya!!!

Answer to your question:

❤(109)^2

=(100+9)^2

=100^2 +9^2 +2 (100)(9)

=10000+81+1800

=11881

❤48*52

=(50-2)(50+2)

=(50)^2 -2^2

=2500-4

=2496

Hope it helps ^_^

Answer 2

$1)\ \ By using the identity \ (a+b)^2=a^2+2ab+b^2, \\ \\ 109^2 \\ \\ (100+9)^2 \\ \\ 100^2+(2\times100\times9)+9^2 \\ \\ 10000+1800+81 \\ \\ \bold{11881}$

$2)\ By using the identity \ (a-b)(a+b)=a^2-b^2, \\ \\ 48\times52 \\ \\ (50-2)(50+2) \\ \\ 50^2-2^2 \\ \\ 2500-4 = \bold{2496} \\ \\ \\ OR \\ \\ \\ By using the identity \ (n-2)(n+2)=n^2-4, \\ \\ 48\times52 \\ \\ (50-2)(50+2) \\ \\ 50^2-4 \\ \\ 2500-4 = \bold{2496}$

$Please mark it as the \bold{brainliest}\ if this helps you. \\ \\ Thank you. Have a nice day. :-)$