What are all the real and complex solutions of x3 + 2x2 + 3x + 6 = 0? If necessary, round to the nearest tenth.

A. −1.5, 0.3 + 1.9i, 0.3 − 1.9i
B. −2, 3√, −3√, i3√
C. −2, i3√, −i3√
D. −1.5, 0.3 + i1.9−−−√, 0.3 − 1.9−−−√

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step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

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step-by-step explanation:

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step-by-step explanation: