University:
Missouri State University
Course:
MTH 103 | Intermediate Algebra
Academic year:

2020
Views:

455

Pages:

1
Author:

vihravihv3y

Algebra IA UG#6: 607 #1-8 all 1) what does it mean to factor a quadratic expression? - to write it as the product of its factas (usually prime) 2) Factor x ^ 2 - 4x + 3 when testing possible foctorizations, wny is it unnecessary to test (x - 1)(x + 3) and (x + 1) * (x - 3)! - These would not be a quality guess because the last factor in each binomial should be factors. of 3... not -3. (x - 1)(x - 3) 5) Foctor x²+2x-3, when testing possible factorizations, why is it unnecessary to test (x - 1)(x - 3) and (x+1)(x+3) -These would not be quality guesses because the last number in each binomial should be foctors of 3... not 3. (x + 3)(x - 1) 4) Con a trinomial x ^ 2 + bx + c where b and a ore integers, be factored with integer coefficients if its discriminant is 35? Expbыл. - No; because 35 is not a perfect square + This problem is not required* Match the trinomial with the correct factorization 5) x ^ 2 - x - 20 A) (x + 5)(x - 4) x ^ 2 + x - 20 B) (x + 4)(x + 5) 7) x ^ 2 + 9x + 20 c) ( x - 4x(x - 5) ©8) x ^ 2 - 9x + 20 D) (x + 4)(x - 5)