Please let me know the mistake in this equation-20-2016-36-25-4542-4 - 9- 52-5- 5942- 2 - 4- 9 - 2-52-2 - 5 - 9 - 24-9 - 22-5-9 - 224-5

42 2*4* 9/2=52 2*5* 9/2 (4 9/2)2 = (5 9/2)2 this step is wrong correctly (4 9/2)^2 = 4^2 (2*4*9/2) + (9/2)^2 (5 9/2)^2 = 5^2 (2*5*9/2) + (9/2)^2 s ...

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Byju's Answer

Standard IX

Mathematics

Identity (x+y)(x-y)

Please let me...

Question

Please let me know the mistake in this equation:

-20=-20

16-36=25-45

4²-49⁼5^2-59

4^{2 -}24 9/2=5²-25 9/2

(4-9/2)²= (5-9/2)²

4=5

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Solution

4^{2 -}24 9/2=5²-25 9/2

(4-9/2)²= (5-9/2)²

this step is wrong

correctly

(4-9/2)^2 = 4^2 -(249/2) + (9/2)^2

(5-9/2)^2 = 5^2 -(259/2) + (9/2)^2

so you cant write like that

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Similar questions

Q. In the given series

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25, 2, 4, 16, 5, 32, 4, 61, 9, 3, 4, 2

How many times the consecutive number in the given sequence is square of the previous number?

Q. Multiply:

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Q. In the given series, how many times the two consecutive (one after another) number in the given sequence are square of the previous number?

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\frac{9}{4} \times 3 \frac{4}{5} \div 5 \frac{2}{11} =

1 \frac{x}{20}

. Find x.

$T h e v a l u e o f \frac{2}{3} \times \frac{5}{6} / \frac{4}{9} - \frac{3}{4} + \frac{2}{9} \times \frac{5}{9} = ?$

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Please let me know the mistake in this equation: -20=-20 16-36=25-45 42 ​​​-4*9=52-5*9 42 - 2*4* 9/2=52 -2*5* 9/2 (4-9/2)2 = (5-9/2)2 4=5

42 - 2*4* 9/2=52 -2*5* 9/2 (4-9/2)2 = (5-9/2)2 this step is wrong correctly (4-9/2)^2 = 4^2 -(2*4*9/2) + (9/2)^2 (5-9/2)^2 = 5^2 -(2*5*9/2) + (9/2)^2 so you cant write like that

Please let me know the mistake in this equation:

-20=-20

16-36=25-45

4²-49⁼5^2-59

4^{2 -}24 9/2=5²-25 9/2

(4-9/2)²= (5-9/2)²

4=5

4^{2 -}24 9/2=5²-25 9/2

(4-9/2)²= (5-9/2)²

this step is wrong

correctly

(4-9/2)^2 = 4^2 -(249/2) + (9/2)^2

(5-9/2)^2 = 5^2 -(259/2) + (9/2)^2

so you cant write like that