x+y+z whole square formula. 10❤❤❤ thanx+flw=ib..
Answers
Answer:
x+y+z=xyz
this is the answer
Answer:
Answer: To square the sum of two unknown quantities, the formula we use is
x+y^2=x^2+y^2+2xyx+y
2
=x
2
+y
2
+2xy ---(1)
Now we have three unknown quantities, x, y,z
So, to get the formula for square of the sum of three unknown quantities, we need to follow the steps
Step 1: Substitute (x+y) instead of x in (1) and z instead of y, we get
((x+y)+z)^2=(x+y)2+z^2+2(x+y)z=(x+y)2+z^2+2xz+2yz((x+y)+z)
2
=(x+y)2+z
2
+2(x+y)z=(x+y)2+z
2
+2xz+2yz
Step 2: Expand first term using (1)
((x+y)+z)^2=x^2+y^2+2xy+z^2+2xz+2yz((x+y)+z)
2
=x
2
+y
2
+2xy+z
2
+2xz+2yz
Step 3: Rearrange the terms by grouping with same exponents and also in the descending order of the exponent of each variable
(x+y+z)^2=x^2+y^2+z^2+2xy+2xz+2yz(x+y+z)
2
=x
2
+y
2
+z
2
+2xy+2xz+2yz