Answered

perfect trinomial square or not? if not why?

1. w²+6w-9
2. 4x²-20x+25
3. 9y⁴+21y²+49

[tex]4. \sqrt{2x + 3 - 9} [/tex]
5.
[tex]5. \frac{4}{25x {}^{2} } + \frac{2}{5x} 1[/tex]
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Sagot :

TLEAMVCGO

Answer:

1. not

the last term should be +9

2. perfect square trinomial

3. not

the middle term should be 42y²