Respuesta:
El 80% de su área es [tex]\frac{4\left(35x^2+66x+27\right)}{5}[/tex] cm²
Explicación paso a paso:
A = b * h
A = (5x + 3) * (7x + 9)
A = 35x² + 66x + 27 cm²
Regla de tres
100 ----------- 35x²+ 66x + 27
80 ------------ x
x = 80 * (35x²+ 66x + 27) / 100
x = [tex]\frac{4\left(35x^2+66x+27\right)}{5}[/tex]
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Verified answer
Respuesta:
El 80% de su área es [tex]\frac{4\left(35x^2+66x+27\right)}{5}[/tex] cm²
Explicación paso a paso:
A = b * h
A = (5x + 3) * (7x + 9)
A = 35x² + 66x + 27 cm²
Regla de tres
100 ----------- 35x²+ 66x + 27
80 ------------ x
x = 80 * (35x²+ 66x + 27) / 100
x = [tex]\frac{4\left(35x^2+66x+27\right)}{5}[/tex]