4a²-4a+1
x²+8x+15
please friends answer me now quick of both questions only answer
Answers
Answered by
1
Answer:
4a²-4a+1
4a²-(2a+2a)+1
4a²-2a-2a+1
2a(2a-1)-1(2a-1)
(2a-1) (2a-1)
x²+8x+15
x²+(5x+3x)+15
x²+5x+3x+15
x(x+5)+3(x+5)
(x+5) (x+3)
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Answered by
1
Answer:
4a2-4a+1
=4a2+4a+1-4b2
=(2a+12) -(2b)2
=(2a+2b+1)(2a-2b+1)
x2+8x+15
=x2-5x-3x+15
=x(x-5)-3(x-5)
=(x-5) (x-3)
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