if x-4=9,find x²-4x+5
Answers
Answered by
4
Answer:
x-4=9
=x=9-4=5
••«x^2-4x+5
=5^2-4*5+5
=25-20+5
=5+5
=10
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Answered by
7
given:
x-4=9
x=13
so, x²-4x+5
=13^2 -4×13 +5
=169-52+5
=122
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