Grade 128 grade maths
Use the identity and find the square of 189.
(a – b)2 = a2 – 2ab + b2
Use the identity and find the square of 189.
(a – b)2 = a2 – 2ab + b2
1 Answer
Harshit Singh
Dear Student
189 = (200 – 11)^2
= 40000 – 2 x 200 x 11 + 11^2
= 40000 – 4400 + 121
= 35721
Thanks
189 = (200 – 11)^2
= 40000 – 2 x 200 x 11 + 11^2
= 40000 – 4400 + 121
= 35721
Thanks
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