Answer:
2x^2+4x-30=0
Step-by-step explanation:
2x^2+10x-6x-30=0
2x(x+5)-6(x+5)=0
(2x-6)(x+5)=0
2x-6=0 x+5=0
x=6/2 x=-5
x=3
so we know that the sum of the two solutions is -2 and the multiplication -15
so we are looking for x so that
x+3=-2 and 3x=-15
it gives x = -5
another way to do it is to put (x-3) in factor as we know that 3 is one of the solutions it gives
and then the second solution is -5
B
if we match the two informations we can say that the triangle is isosceles
6g+10≤35
Hope that helps!!! :D
Step 3
27%
Decrease= 15-11
=4
Percentage=4÷15
=0.266666667
=26.667%
~27%