What are the factors of 30x2+13x−10 30
x
2
+
13
x
−
10
?

(3x+2)(10x−5)
(

(2x+5)(15x−2)
open paren 2 x plus 5 close paren times open paren 15 x minus 2 close paren

(30x+2)(x−5)
open paren 30 x plus 2 close paren times open paren x minus 5 close paren

(6x+5)(5x−2)

it is x=-4

step-by-step explanation:

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.

it has to have an angle of 90 degrees

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629