Answer:
81
Step-by-step explanation:
3^4
=3*3*3*3
=81
Hope this helps!!
Answer:
−x²−4x+3−x+3
Subtract x from −4x.
−x²−5x+6
Step-by-step explanation:
Answer:
(A+B)(A+B)=A.A+B.A+A.B+B.B
Step-by-step explanation:
Given that matrices A and B are nxn matrices
We need to find (A+B)(A+B)
For understanding the multiplication of matrices let'take A is mxn and B is pxq matrices,we can multiple only when n=p,so our Ab matrices will be mxq.
We know that that in matrices AB is not equal to BA.
Now find
(A+B)(A+B)=A.A+B.A+A.B+B.B
So from we can say that (A+B)(A+B) is not equal to A.A+2B.A+B.B because AB is not equal to BA in matrices.
So (A+B)(A+B)=A.A+B.A+A.B+B.B
Answer:
-6
Step-by-step explanation:
13+(-19) (distribute "+" sign into parentheses)
= 13-19
= -6
