Provide an appropriate response.When is the square of the sum the sum of a square; i.e., when is (A + B)2 = A2 + B2 ?
What will be an ideal response?
Now (A + B)2 = A2 + 2AB + B2, so that (A + B)2 = A2 + B2 just in case 
that is 
or 
The square of the sum is the sum of the squares in the case (at least) one of the numbers is 0.
Mathematics
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Given matrix A, find the indicated minor.Find M12.A = 
A. 5 B. 9 C. -5 D. 0
Mathematics
Find the vertex for the parabola whose equation is given.y = x2 + 9x
A. (0, -9)
B. (- 
, - 
)
C. (0, 0)
D. (-9, -81)
Mathematics
Determine the x- and y-intercepts on the graph of the equation.y = 11(x + 1) - 1
A. x-intercept is - 
; y-intercept is 10
B. x-intercept is 
; y-intercept is 10
C. x-intercept is 10; y-intercept is 12
D. x-intercept is - 
; y-intercept is -10
Mathematics
Solve the equation for y.-5x + 4y = 3
A. y = 
B. y = 20x + 12
C. y = 
D. y = 
Mathematics