7. Find the zeroes of the quadratic polynomials
x 2 - 2 x - 8
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Answer:
4, -2
Step-by-step explanation:
x^2 - 2x - 8 =0
=> x^2 - 4x + 2x - 8 =0
=> x(x-4)+2(x-4)=0
=> (x+2)(x-4)=0
=> x+2=0 or x-4=0
=> x = -2 or x = 4
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