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giving brainliest :D
show steps in a simple way (not to long of an example ty :))

Giving Brainliest D Show Steps In A Simple Way Not To Long Of An Example Ty class=

Sagot :

blackshades

Answer:

[tex]\boxed{8x+6 \: units= base}[/tex]

Step-by-step explanation:

Altitude = 3x

Area = 12x² + 9x

We know that

Area of right triangle = ½ × base × altitude

Then,

12x² + 9x = ½ × 3x × base

[tex]12x ^ { 2 } +9x= \frac{ 3x }{ 2 } \times \: base[/tex]

[tex]\frac{6x\left(4x+3\right)}{3x} = \frac{3x\times \: base}{3x}[/tex]

[tex]\frac{6x\left(4x+3\right)}{3x} = base[/tex]

[tex]\underline{\underline{8x+6 \: units= base}}[/tex]

________

Hope it helps ⚜

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