Factor completely 4x^3 + 28x^2 + 7x + 49
a.) (x - 7)(4x^2 + 7)
b.) (x - 7)(4x^2 - 7)
c.) (x + 7)(4x^2 + 7)
d.) (x + 7)(4x^2 - 7)

Factor completely 4x^3 + 28x^2 + 7x + 49

A.) (x - 7)(4x^2 + 7)

B.) (x - 7)(4x^2 - 7)

D.) (x + 7)(4x^2 - 7)

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step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: