Simplify
-3x^3 (-2x^2+4x-3)
a -5x^5 +x^4 -6x^3
b -6x^6-12x^4 +9x^3
c 6x^5-12x^4+9x^3
d 6x^6-12x^3+9

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.