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21-04-2021
Mathematics

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x2 -8k -4=44 complete the square

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21-04-2021

Answer:

x= -4,12

Step-by-step explanation:

Take half the value of b(-8) and then square it

Add 16 to both sides

Left with x^-8x+12=60

Subtract 60 on both sides

Reverse FOIL

Polynomial should equal (x+4)(x-12)

Solve for x

x=12 and x=-4

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