3 years ago

4x^2+bx+9=0 has no real number solutions what must be true about b

Mathematics

1 answer:

timama [110]3 years ago

4 0

b^2-4ac<0 b^2-144<0 (b-12)(b+12)<0

-12<b<12

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4 divided by 84 isn't 21, but 84 divided by 4 is 21! 4 divided by 84 is asking how many times 84 goes into 4 which is not even 1.

4 divided by 84 = 0.04761904761....

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