Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Find the discriminant.\newline7w2+5w+8=07w^2 + 5w + 8 = 0

Full solution

Q. Find the discriminant.\newline7w2+5w+8=07w^2 + 5w + 8 = 0
  1. Identify coefficients: Identify the coefficients aa, bb, and cc from the quadratic equation 7w2+5w+8=07w^2 + 5w + 8 = 0 by comparing it to the standard form ax2+bx+c=0ax^2 + bx + c = 0. Here, a=7a = 7, b=5b = 5, and c=8c = 8.
  2. Recall formula: Recall the formula for the discriminant of a quadratic equation, which is D=b24acD = b^2 - 4ac.
  3. Substitute values: Substitute the identified values into the discriminant formula: D=(5)24×7×8D = (5)^2 - 4 \times 7 \times 8.
  4. Calculate discriminant: Calculate the discriminant: D=254×7×8D = 25 - 4 \times 7 \times 8.
  5. Perform multiplication: Perform the multiplication and subtraction to find the value of the discriminant: D=25224D = 25 - 224.
  6. Complete calculation: Complete the calculation to get the final value of the discriminant: D=199D = -199.

More problems from Using the discriminant