Find the square of the following answers by the 'column method' a. 73 b. 98 PLS ANSWER... BEST WILL ME MARKED THE *BRAINLIEST*
Answers
Answer:
171
Step-by-step explanation:
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Answer:
73 square is 5329,,98 square is 9604
Step-by-step explanation:
Column Method : We can find the square of a number using the formula (a+b)^2 = a^2 + 2ab + b^2 For example, let us consider a number 98, Step 1 : Consider a = 9 and b = 8. From the formula, let us take a^2 as column 1, 2*a*b as column 2 and b^2 as column 3. Step 2 : Find the values of all the columns Column 1 = a^2 = 9*9 = 81 Column 2 = 2*a*b = 2*9*8 = 144 Column 3 = b*b = 8*8 = 64 Step 3 : Bold the unit digit of b^2, add its tens digit to column 2 value. b^2 = 64 2ab = 144 + 6 = 150. Step 4 : Bold the unit digit of 2ab, add its tens and other digit values to a^2. 2ab = 150 a^2 = 96 Step 5 : Bold the number in column 1. a^2 = 96 Step 6 : Append all the digits bolded, 9604 Hence the square root of 98 is 9604...
similar to this you can try finding 73 yourself :P
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