Math, asked by vikashbeswal, 5 months ago

please 6 me a ka answer bata doo please
plz.. help me
plz.. don't do for points
please​

Attachments:

Answers

Answered by neerajkumarsingh304
1

Step-by-step explanation:

This may help you in understanding!!!

Attachments:
Answered by vipashyana1
1

Answer:

a)x³+y³-3xyz+a²(b-c)+3abc=(-7)

b)x²+y²-z²-2ab-2ca+xyz=(-10)

Step-by-step explanation:

a)x³+y³-3xyz+a²(b-c)+3abc

=(1)³+(-1)³-3(1)(-1)(3)+(1)²(-2-2)+3(1)(-2)(2)

=1+(-1)-(-9)+(-4)+(-12)

=1-1+9-4-12

=0+5-12

=(-7)

b)x²+y²-z²-2ab-2ca+xyz

=(1)²+(-1)²-(3)²-2(1)(-2)-2(2)(1)+(1)(-1)(3)

=1+1-9-(-4)-4+(-3)

=1+1-9+4-4-3

=2-9-3

=(-7)-3

=(-10)

Similar questions