InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Answrs needed in full explanation |
|
Answer» D SOLUTION:ANSWERS:-x²-y²-1a=0______________________SOLUTION 1:Here in this question we have to add all the three EQUATIONS. We can add SIMILAR terms to simplify this question.Let's start!=> (x²-y²-1)+(y²-1-x²)+(1-x²-y²)Now remove the BRACKETS. => x²-y²-1+y²-1-x²+1-x²-y²Now we have to arrange similar terms.=> x²-x²-x²-y²+y²-y²-1-1+1Now we can subtract similar terms.=> -x²-y²-1Hence the final answer is -x²-y²-1.____________________________SOLUTION 2:Here in this question we have given a quadratic equation and value of x is given to be 0 and we have to find the value of a.Let's start!=> p(x)=2x²+x-aNow put the value of x to be 0 in this equation.=> p(0)=2(0)²+(0)-aWe know that whenever a NUMBER is MULTIPLIED by 0, it will give answer to be 0.=> 0=-a[∴ Hence a=0] |
|