Write the quadratic equation whose roots are - 6 and 2, and whose leading coefficient is 5. (use the letter x to represent the variable.)

Question

Mathematics

Jaslene Yang

7 February, 03:48

Write the quadratic equation whose roots are - 6 and 2, and whose leading coefficient is 5. (use the letter x to represent the variable.)

+5

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Cher · Answer 1

Here let the quadratic equation be ax^2 + bx + c We know that a=5 from the question. Since the roots are 6 and 2, the quadratic equation would take the form of a product like (a1x-b1) (a2x-b2). However, let's assume that a2=1 and b2=6, Since a=5, a1=5, then 5x-b1=5 (x-2). Solving this shows that b1=10 So, the equation is (5x-10) (x-6)