The factor of the polynomial 7x³+28x²+21x are 7x, (x + 1), and (x + 3) after factorization.
Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.
We have a polynomial:
= 7x³+28x²+21x
= 7x(x + 1)(x + 3)
Thus, the factor of the polynomial 7x³+28x²+21x are 7x, (x + 1), and (x + 3) after factorization.
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Answer:
7x (x + 1 ) ( x + 3 )
Step-by-step explanation:
7x³ +28x² +21x
7x ( x² + 4x + 3 )
7x [ x² + 1x + 3x + 3 ]
7x [ x ( x + 1 ) + 3 ( x + 1 ) ]
7x (x + 1 ) ( x + 3 )
o 4х2 – 10
o 4х2 + 25
o 4х2 – 25