Question

Find all values of x which 5x^2-30x+2 less or equal to 7?

Answer 1

I tried the derribative

Answer 2

it did not work

Answer 3

so its

\[5x^3 - 30x + 2\le 7\]

subtract 7 from both sides...

then divide by 5

then GQF

Answer 4

This is an inequality. This is how we set this up:\[\bf 5x^2 -30x+2 \le 7 \implies 5x^2-30x-5 \le 0 \implies x^2 -6x - 1 \le 0\]Factor the equation and find the interval in which the parabola lies at and below 0.

Answer 5

@luis0147896325

Answer 6

Thank You @genius12

Answer 7

wait i vant factor that

Answer 8

@genius12 I cant