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viva [34]
2 years ago
7

Using the quadratic formula, what are the solutions to x2 – 3x = -2?

Mathematics
2 answers:
Kryger [21]2 years ago
6 0

Step-by-step explanation:

<h2>Nubra Valley in Ladakh. Nubra Valley | #1 of 30 Most Beautiful Places in India. ... </h2><h2>Khajjiar in Himachal Pradesh. ... </h2><h2>Valley of Flowers in Uttarakhand. ... </h2><h2>Dal Lake in Srinagar. ... </h2><h2>Munnar in Kerala. ... </h2><h2>Dudhsagar Falls in Goa. ... </h2><h2>Yumthang Valley in Sikkim. ... </h2><h2>Tawang in Arunachal Pradesh.</h2>
Mazyrski [523]2 years ago
6 0

Answer:

x=1,\: x=2

Step-by-step explanation:

To be honest, you don't need the quadratic formula as you can just factor the polynomial after setting it equal to 0:

x^2-3x=-2\\\\x^2-3x+2=0\\\\(x-1)(x-2)=0\\\\x=1,\: x=2

If you really need to use the quadratic formula, here's the process:

ax^2+bx+c=0\\\\x^2-3x+2=0\\\\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\frac{-(-3)\pm\sqrt{(-3)^2-4(1)(2)}}{2(1)}\\\\x=\frac{3\pm\sqrt{9-8}}{2}\\\\x=\frac{3\pm\sqrt{1}}{2}\\\\x=\frac{3\pm1}{2}\\x_1=\frac{3-1}{2}\\ \\x_1=\frac{2}{2}\\\\x_1=1\\\\x_2=\frac{3+1}{2}\\\\x_2=\frac{4}{2}\\ \\x_2=2

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