Question

X+ 2y = 4 এবং xy = 2হয়, তবে x = কত?​

Answer 1

Answer:

x+2y=4

=> y=(4-x)/2.... (i)

as xy=2 ...(ii)

then substituting value of y in eq.(i) to eq(ii)

$(4 - x)x = 2 \times 2 \\ 4x - x {}^{2} = 4 \\ x(4 - x) = 4 \\ x = 4 \: or \: 4 - x = 4 \\ - x = 0 \\ \\ x = 4 \: or \: 0$

Answer 2

Answer:

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