Question

1) (6x² + 2 x - 9).(5x²) =​

Answer 1

$(6 {x}^{2} \: + \: 2 x \: - \:9)(5 {x}^{2} )$

$(6 {x}^{2} \: + \: 2x \: - \: 9) \: \times \: {5x}^{2}$

$6 {x}^{2} \: \times \: {5x}^{2} \: + \: 2x \: \times \: {5x}^{2} \: - \: 9 \: \times \: {5x}^{2}$

$30 {x}^{4} \: + \: 2x \: \times \: {5x}^{2} \: - \: 9 \: \times \: {5x}^{2}$

${30x}^{4} \: + \: {10x}^{3} \: - \: 9 \: \times \: {5x}^{2}$

$\boxed{ \bold{ {30x}^{4} \: + \: {10x}^{3} \: - \: {45x}^{2} }}$

Besitos OvO