Marco used a doubling & halving strategy to solve 25 x 56. Fill in the blanks in the
arrays and the equations to represent his work.

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

the answer is a.

135 and 80

step-by-step explanation:

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