Question

Find the identities of
1) (8.9)^2
2) 297*303​

Answer 1

1) (8.9)^2

(9-0.1)^2

(9)^2-2(9)(0.1)+(0.1)^2

81-1.8+0.01

81-17.9

79.2

2) (297)(303)

=(300−3)(300+3)

Using ,

(a−b)(a+b)=a^2^ −b^2

we get,

(300)^2 −(3)^2

=90000−9

=89991

please mark as brainlist answer and follow me please thank answer