Solve the simultaneous equation
2x+3y+1=0 and y²+6xy+6=0​

when y = -1.07, x = 1.105

when y = 0.698, x = -1.547

The explanation to the above solutions is as follows;

Given;

2x + 3y + 1 = 0 -----(1)

y² + 6xy + 6 = 0​ ---- (2)

To solve for x and y;

From equation (1) above, make x the subject of the formula;

Now solve for the values of x

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none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.