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Which of the following is not a perfect square trinomial?144 + 12y + y2100 + 20y + y264 – 16y + y225 + 10y + y2

User Freakyuser
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1 Answer

2 votes

1) Analyzing those trinomials, a perfect square trinomial must satisfy some conditions like (ax+b)²

2) Given

y² +12y +144 ≠ (y +6)²

y² +20y +100 = (y+10)²

y²-16y +64 =(y-8)²

y² +10y +25 = (y +5)²

3) So since b/2=12/2 = 6 ≠ 12² in the y² +12y +144 is different from 12², then

y² +12y +144 is not a perfect square trinomial.

User Sange
by
7.0k points
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