the value of x and y is ±3 and ±4 respectively.
What is Equation?
An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
4xy + 2y² = 80 ...........(i)
6xy + 4y² = 136...........(ii)
On multiply 3 in equation (i) and 2 in equation (ii), we get
12xy + 6y² = 240 ............(iii)
12xy + 8y² = 272 .............(iv)
Subtracting equation (iii) from eq. (iv), we get
2y² = 32
y² = 16
y = ±4
Put the value of y in equation (i), we get
x = ±3
Thus, the value of x and y is ±3 and ±4 respectively.
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