Question

divide as directed 5(2x+1)(3x+5)÷(2x+1)

Answer 1

your question is here

Answer 2

5(2x+1) (3x+5) ÷(2x+1)
=(10x+5)(3x+5) ÷(2x+1)
=10x(3x+5) +5 (3x+5) ÷(2x+1)
= 30x^2 + 50x +15x +25 ÷(2x+1)
= (30x^2 + 65x +25) ÷(2x+1)
let's solve the quadratic equation 30x^2 + 65x +25
a= 30 ,b= 65 ,c=25
x=-b+-(√b^2-4ac)÷2a
x=-65 +- ( √65^2 - 4×30×25)÷2×30
x= -65 +- (√4225-3000)÷60
x= -65 +- (√1225)÷60
x= -65 +- 35÷60
x= -65-35÷60. or x= -65 +35/60
x= -100÷60. or. x= -30÷60
x=-1.666. or. x = -0.5
Putting value of x in eq (30x^2 + 65x +25) ÷(2x+1)