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aev [14]
3 years ago
13

2x^2-3x-2=0 zero product property

Mathematics
2 answers:
DIA [1.3K]3 years ago
6 0
2x^2-3x-2=0 \\
2x^2-4x+x-2=0 \\
2x(x-2)+1(x-2)=0 \\
(2x+1)(x-2)=0 \\
2x+1=0 \ \lor \ x-2=0 \\
2x=-1 \ \lor \ x=2 \\
x=-\frac{1}{2} \ \lor \ x=2 \\
\boxed{x=-\frac{1}{2} \hbox{ or } x=2}
sergey [27]3 years ago
6 0
2x² - 3x - 2 = 0
x = <u>-(-3) +/- √((-3)² - 4(2)(-2))</u>
                     2(2)
x = <u>3 +/- √(9 + 16)</u>
                 4
x = <u>3 +/- √(25)
</u>             4<u>
</u>x = <u>3 +/- 5
</u>          4
x = <u>3 + 5</u>  or  x = <u>3 - 5</u>
         4                   4
x = <u>8</u>             x = <u>-2</u>
      4                    4
x = 2             x = ⁻¹/₂
<u />
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Classify the following into monomials, binomial and trinomials.
Degger [83]
  • A monomial is an expression containing a single term.
  • A binomial is an expression having two terms.
  • A trinomial is an expression having three terms.

  1. Here -6 is a monomial having a single term -6.
  2. -5 + x is a binomial containing two terms -5 and x.
  3. 32x - y is a binomial having two terms 32x and -y.
  4. 6x² + 5x - 3 is a trinomial having three terms 6x², 5x and -3.
  5. z² +2 is a binomial having two terms z² and 2.

<u>Answers</u>

  1. <u>monomial</u>
  2. <u>binomial</u>
  3. <u>binomial</u>
  4. <u>trinomial</u>
  5. <u>binomial</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
2 years ago
Please help asap 30 pts
Darina [25.2K]
D. If you were to graph this, the vertex would be at (9/8,101/4), or (1.13,25.25).
5 0
3 years ago
Kay left her computer running for 2~ days. How many hours did she leave her computer running for?
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3 0
3 years ago
Which of the following shows the correct steps to find the value of 27 to the power of 1 over 3 ? (1 point) 27 to the power of 1
sammy [17]

Step-by-step explanation:

27^1/3

=(3^3)^1/3

=(3^3)×1/3

=3, so your final answer is D.)27 to the power of 1 over 3 equals 3 to the power of 3 to the power of 1 over 3 equals 3 to the power of 3 multiplied by 1 over 3 equals 3

Or

27^1/3=?

To find the answer, I will use one formula from Laws of Exponent

a^p/q

=q√a^p

Apply the same steps to 27^1/3

27^1/3

=³√27¹

=³√27

=3. Hope it help!

6 0
3 years ago
Read 2 more answers
How do you solve #10
IgorLugansk [536]
LINEAR \: \: EQUATIONS \\ \\ \\ Given \: expression \: \: - \: \\ \\ \frac{7}{3} (2x + 3) + \frac{3}{4} ( \frac{x}{5} - \frac{15}{2} ) = \frac{11}{8} \\ \\ \frac{14x}{3} + \frac{21}{3} + \frac{3x}{20} - \frac{45}{8} = \frac{11}{8} \\ \\ \frac{14x}{3} + \frac{3x}{20} + \frac{21}{3} - \frac{45}{8} = \frac{11}{8} \\ \\ \frac{289x}{60} = \frac{11}{8} + \frac{45}{8} - \frac{21}{3} \\ \\ \frac{289x}{60} = \frac{56}{8} - \frac{21}{3} \\ \\ \frac{289x}{60} = 7 - 7 = 0 \\ \\ \frac{289x}{60} = 0 \\ \\ \\ \: \: \: \:|| \: \: \: x = 0 \: \: \:|| \: \: \: \: \: \: \: \: \: \: \: \: \: Ans.
3 0
3 years ago
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