Is the matrix regular?
no
Mathematics
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Multiply the polynomials using a special product formula. Express the answer as a single polynomial in standard form.(x + 4)3
A. x3 + 12x2 + 12x + 64 B. x3 + 12x2 + 48x + 64 C. x3 + 4x2 + 8x + 64 D. x3 + 12x2 + 8x + 64
Mathematics
Find the solution to the system of equations by the substitution method.-7x + 7y = 21-5x - 2y = -6
A. (-1, 4) B. (0, 4) C. (-1, 3) D. (0, 3)
Mathematics
Find the domain of the function.f(x) = 
A. (-?, ?) B. (-?, 0) ? (0, ?) C. (-?, -5) ? (-5, ?) D. (-?, -5)
Mathematics
Write an equation for the line described. Give your answer in slope-intercept form.slope 0, y-intercept 
A. x = 
B. y = 
C. y = 
x
D. y = - 
x
Mathematics