Question

please answer....... I will mark the brainliest, question 8+9​

Answer 1

8+9=17

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

x³ + 2x² - 13x + 10 = 0

(x+5) is a factor .

Using synthetic division:

-5     1      2      -13       10

              -5       15      -10

        1     -3        2       0 -------( 1,-3,2 are co-efficient of quadratic equation)

x³+2x²-13x+10 = (x+5)(x²-3x+2)

=(x+5)(x²-2x-x+2)

(x+5)(x(x-2)-1(x-2)

(x+5)(x-1)(x-2)

Other two factors are 1 and 2.

9.  3√2/(√3+√6) - 4√3/(√6+√2)

= 3√2(√3-√6)/(√3+√6)(√3-√6) - 4√3(√6-√2)/(√6+√2)(√6-√2)

= 3√2(√3-√6)/(3-6) - 4√3(√6-√2)/(6-2)

= 3√2(√3-√6)/(-3) - 4√3(√6-√2)/(4)

= -√2(√3-√6) - √3(√6-√2)

=√2(√6-√3) - √3(√6-√2)