2 years ago

Need help with this question!

Mathematics

2 answers:

Amiraneli [1.4K]2 years ago

6 0

Step-by-step 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

$x=$ $-\frac{3.6 + \sqrt{25.92} }{2}$ , $x=\frac{\sqrt{25.92} -3.6}{2}$

rosijanka [135]2 years ago

3 0

Not sure:((((((( sorrryyyy

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