Question

(3x+4) (3x-5)
please try​

Answer 1

Simplification

$(3x + 4)(3x - 5)$

$= 3x(3x - 5) + 4(3x - 5)$

$= 9 {x}^{2} - 15x + 12x - 20$

$9 {x}^{2} - 3x - 20$

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solving x,

$3x + 4 = 0 \: \: \: \: \: \: \: \: \: \: 3x - 5 = 0$

$x = \frac{ - 4}{3} \: \: \: \: (or) \: \: \: \: x = \frac{5}{3}$

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