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x cm
2 cm
В.
A
C
x cm
The area of square ABCD is 7 cm?.
Show that x2 + 4x = 3
2 cm
+
A
D
Look at pic

x cm 2 cm В A C x cm The area of square ABCD is 7 cm Show that x2 4x 3 2 cm A D Look at pic class=

Respuesta :

Answer:

Step-by-step explanation:

x×x=x²

2×x=2x

2×x=2x

2×2=4

Add like terms to make the equation:

[tex]x^{2} +4x+4=7[/tex]

So:

[tex]x^{2} +4x=3[/tex]

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