factorise a square -16a+64
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Answered by
1
a²-16a+64=0
a²-8a-8a+64=0
a(a-8)-8(a-8) =0
(a-8)(a-8)=0
a=8,8
Answered by
0
Answer:
16a-64=0
16(a-4)=0
a-4=0
a=4
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