Question

Asked Nov 21, 2019

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solve the system using substituition or elimination

x^{2}-xy-2y^{2}=0

xy+x+6=0

Step 1

Given:

Step 2

Take the value of *y* in terms of *x* from equation (ii) and put in equation (i).

Step 3

Now, *x* = 3 is one of the zeroes of the equation (iii).

Because, 34 + 33 + 4(3)2 – 24(3) – 72 is equal to zero.

So, (*x* – 3) will be t...

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