Question

the area of square is 400 metre square then find the side of the square by the method of factorization . plz anybody can ​

Answer 1

Answer:

Step-by-step explanation:

Let side be x

X^2=400

X=✓400

=✓(2*2*10*10) =20

Answer 2

Area of square

$area \: of \: a \: square \: field = 400m {}^{2} \\ let \: th e \: side \: be \: x \\ area = {x}^{2} = side \times side \\ \: \: \: x {}^{2} = 400 \: \\ general \: form = x {}^{2} + 0x - 400 = 0 \\ here \: product = - 400 \: \: \: sum = 0 \\ therefore \: the \: no.s \: are \: 20 \: and \: - 20 \\ factors \: are \: (x - 20)(x + 20) \\ x = 20 \: and \: x = - 20 \\ area \: cannot \: be \: negative \: side = 20$

hope this would be helpfull

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