SOLUTION: Determine whether each of the following is a trinomial square. 1. x2-14x + 49 2. x2-10x - 25 3. 36x2-24x+16 4. 16x2-40xy+25y2 5. 9x2

SOLUTION: Determine whether each of the following is a trinomial square. 1. x2-14x + 49 2. x2-10x - 25 3. 36x2-24x+16 4. 16x2-40xy+25y2 5. 9x2 - 36x + 24 Can someone please help?

Question 74576: Determine whether each of the following is a trinomial square.
1. x2-14x + 49
2. x2-10x - 25
3. 36x2-24x+16
4. 16x2-40xy+25y2
5. 9x2 - 36x + 24
Can someone please help? Thank you!!
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
X^2-14X+49=(X-7)(X-7) YES.
X^2-10X-25=USING THE QUADRATIC EQUATION WE GET x=12.07 & X=-2.07. NO.
36X^2-24X+16=USING THE QUADRATIC EQUATION WE GET X=1/3+-.577i. NO.
16X^2-40XY+25Y^2=(4X-5Y)(4X-5Y) YES.
9X^2-36X+24=(3X-4)(3X-6)=using the quadratic equation we get x=3.155&x=.845. NO
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