Question

Need help with this question!

Answer 1

Explanation:

a=(x + 3)

b=2x

c=(2x + 2.4)

(x + 3)^2 + 2x^2 = (2x + 2.4)^2

=3x^2 + 6x + 9 = 4x^2 + 9.6x +5.76

= -x^2 - 3.6x + 3.24 = 0

now we have a quadratic equation so

a= -x

b= -3.6

c= 3.24

`x=`
`-(3.6 + √(25.92) )/(2)` ,
`x=(√(25.92) -3.6)/(2)`

Answer 2

not sure:((((((( sorrryyyy