Question

X²- 3x + 4
4x² - 2x +7
-x² + 5x -2

Answer 1

$\huge\pink{\mathfrak{Answer}}$

1

${x}^{2} - 3x + 4 \\ \\ = > {x}^{2} - x - 2x + {2}^{2} \\ \\ = > x(x - 1) + 2(x - 1 \\ \\ = > (x + 2)(x - 1)$

2

${4x}^{2} - 2x + 7 \\ \\ = > x^2 -3x + 28 \\ \\ </p><p></p><p> = > x^2- (7-4)x - 28 \\ \\ </p><p></p><p> = > x^2 - 7x +4x -28 \\ \\ </p><p></p><p> = > x(x-7)+4(x-7) \\ \\ </p><p></p><p> = > (x-7)(x+4) \\ \\ </p><p></p><p>$

3

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

#BeBrainly

Answer 2

$\huge\pink{\mathfrak{Answer}}$

{4x}^{2} - 2x + 7

= > x^2 -3x + 28

= > x^2- (7-4)x - 28

= > x^2 - 7x +4x -28

= > x(x-7)+4(x-7)

= > (x-7)(x+4)

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

#BeGenius