Question

The coefficient of x² in (5x+3) (2x²-x+1) ? A.) 0 B.)1 C.)2 D.)3​

Answer 1

Answer:

$(5x+3) (2x^2-x+1)$

$5(2x^2x)-5x(x)+5(1)(x)+3(2x^2)-3x+3(1)$

$10x^3-5x^2+5x+6x^2-3x+3$

$10x^3+x^2+2x+3$

Coefficient of $x^2$ in $10x^3+x^2+2x+3= \: 1$

$Option \: B$

$@rohangupta0424$

Answer 2

Answer:

$(5x + 3)(2x {}^{2} - x + 1)$

$10 {x}^{3} - 5x {}^{2} + 5x + 6x {}^{2} - 3x + 3$

$10 {x }^{3} + x {}^{2} + 2x + 3$

coefficient of x² is 1