kaquino983
10.01.2020 •
Mathematics
Use the quadratic formula to solve for x.
3x² +9x=-4
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Ответ:
Step-by-step explanation:
3x² +9x=-4 means : 3x² +9x+4=0
a=3 and b=9 and c= 4
Δ : b²-4ac Δ = 9²-4(3)(4) = 81 - 48 = 33
Solution of a quadratic equation ax² + bx + c = 0
x = [-b ± v(b² - 4ac)]/2a
Δ = b²- 4ac continu
Ответ:
36.5 = 3.65x10^1
106= 1.06x10^2