Question

Factor 4x2 – 13x + 10.

Answer 1

Help @knock ?

Answer 2

(x-2)(4x-5)=4x^2-5x-8x+10=4x^2-13x+10 (using Ruffini's rule)

Answer 3

What's Ruffini's rule?

Answer 4

http://www.vitutor.com/alg/polynomials/ruffini.html

Basically synthetic division.

Answer 5

Nevermind I need help. Normal help.

Answer 6

Use formula for factoring quadratic equation:
ax2 + bx + c = a(x - x1)(x - x2)
Where x1 and x2 are solutions of quadratic equation
In our case we have:
4x2 - 13x + 10 = 4(x - 2)(x - 5/4)
We can simplify this expression by multiply the second bracket by 4.
After multiplying we have:
4x2 - 13x + 10 = ( x - 2 )( 4x - 5 )

Answer 7

it's actually 4x^2 sorry.

Answer 8

but still, the answer you get is (x-2)(4x-5)