Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Solve using the quadratic formula.\newline8h2+2h4=08h^2 + 2h - 4 = 0\newlineWrite your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.\newlineh=h = _____ or h=h = _____

Full solution

Q. Solve using the quadratic formula.\newline8h2+2h4=08h^2 + 2h - 4 = 0\newlineWrite your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.\newlineh=h = _____ or h=h = _____
  1. Quadratic Formula Definition: The quadratic formula is given by h=b±b24ac2ah = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}, where aa, bb, and cc are the coefficients of the quadratic equation ax2+bx+c=0ax^2 + bx + c = 0. In this case, a=8a = 8, b=2b = 2, and c=4c = -4.
  2. Calculate Discriminant: First, calculate the discriminant, which is the part under the square root in the quadratic formula: b24acb^2 - 4ac. Here, it is 224(8)(4)2^2 - 4(8)(-4).
  3. Discriminant Calculation: Perform the calculation: 224(8)(4)=4+128=1322^2 - 4(8)(-4) = 4 + 128 = 132.
  4. Insert Values into Formula: Now, insert the values of aa, bb, and the discriminant into the quadratic formula: h=2±1322×8h = \frac{-2 \pm \sqrt{132}}{2 \times 8}.
  5. Simplify Formula: Simplify the quadratic formula: h=2±13216h = \frac{-2 \pm \sqrt{132}}{16}.
  6. Calculate Possible Values: Calculate the two possible values for hh: h=2+13216h = \frac{-2 + \sqrt{132}}{16} and h=213216h = \frac{-2 - \sqrt{132}}{16}.
  7. Simplify Square Root: Simplify the square root of 132132 to its simplest radical form, which is 4×33=233\sqrt{4\times33} = 2\sqrt{33}. So, the formula becomes h=2±23316h = \frac{-2 \pm 2\sqrt{33}}{16}.
  8. Factor Out Common Factor: Now, factor out the common factor of 22 in the numerator: h=2(1±33)16h = \frac{2(-1 \pm \sqrt{33})}{16}.
  9. Simplify Fraction: Simplify the fraction by dividing both the numerator and the denominator by 22: h=1±338h = \frac{-1 \pm \sqrt{33}}{8}.
  10. Write Solutions: Finally, write the two solutions for hh: h=1+338h = \frac{-1 + \sqrt{33}}{8} or h=1338h = \frac{-1 - \sqrt{33}}{8}.

More problems from Solve a quadratic equation using the quadratic formula