For what value of b is x^2+bx+49 a perfect square? I got that b is -14 is that correct?

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x2−x−2=0 x2+1.5x−1=0 x2+2x−3=0. Correct. ... of the form of ax2 + bx + c is actually a perfect square ... the value of a·b? −3 −2 −1 1 6 ...
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Have the correct answer but need ... how to get the answer it. B.) (3x root x^2) ... 20 Answer: (x-2)(x-10) 2. x^2-x-20 Answer: (x-5)(x+4) 3. x^2-49 ...
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if you want exact you have to keep it in the square root format, because sqrt{49+4*3 ... the value of x that you got in the ... [x^2+2x+1=49\to x ...
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