Question

simplify 3(x²+xy-1)+5-2xy and and find its value if x=3 and y=2
tell me ans and write solution step by step​

Answer 1

Answer:

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Answer 2

Simplification

Simplification is a method of simplifing a complicated mathematical expression to get a single or direct answer.

Now, Let's move on finding the solution for our question.

We have given an equation, $\sf{3(x^2\:+\:xy\:-\:1)\:+\:5\:-\:2xy}$.

where,

• $\sf{x\:=\:3}$
• $\sf{y\:=\:2}$

We can find the solution by substituting the values in the equation and simplifing it.

Step-by-step Explanation :

$\implies\sf{3(x^2\:+\:xy\:-\:1)\:+\:5\:-\:2xy}$

Substituting values in Equation, we get,

$\implies\sf{3(3^2\:+\:(3)(2)\:-\:1)\:+\:5\:-\:2(3)(2)}$

$\implies\sf{3(9\:+\:(3)(2)\:-\:1)\:+\:5\:-\:2(3)(2)}$

$\implies\sf{3(9\:+\:6\:-\:1)\:+\:5\:-\:2(3)(2)}$

$\implies\sf{3(9\:+\:6\:-\:1)\:+\:5\:-\:12}$

$\implies\sf{3(9\:+\:5)\:+\:5\:-\:12}$

$\implies\sf{3(14)\:+\:5\:-\:12}$

$\implies\sf{42\:+\:5\:-\:12}$

$\implies\sf{47\:-\:12}$

$\implies\sf{35}$