Factorise:
x2 + 8x + 16
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Answer:
x²+8x+16=0
→ x²+4x+4x+16=0
→x(x+4) +4(x+4) =0
→ (x+4) (x+4) =0
→ (x+4) =0 Or (x+4) =0
→ x= -4 or x=-4
Therefore,
(-4, -4) are the roots of the quadratic equation.
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