1) \(6x^2-15x+6\)
\(=6x^2-3x-12x+6\)
\(=3x\left(2x-1\right)-6\left(2x-1\right)\)
\(=\left(3x-6\right)\left(2x-1\right)\)
\(=3\left(x-2\right)\left(2x-1\right)\)
b) \(6x^2-20x+6\)
\(=6x^2-2x-18x+6\)
\(=2x\left(3x-1\right)-6\left(3x-1\right)\)
\(=\left(2x-6\right)\left(3x-1\right)\)
\(=2\left(x-3\right)\left(3x-1\right)\)
c) \(-10x^2-7x+6\)
\(=5x-10x^2+6-12x\)
\(=5x\left(1-2x\right)+6\left(1-2x\right)\)
\(=\left(5x+6\right)\left(1-2x\right)\)
d) \(10x^2-7x-12\)
\(=10x^2-15x+8x-12\)
\(=5x\left(2x-3\right)+4\left(2x-3\right)\)
\(=\left(5x+4\right)\left(2x-3\right)\)
1) 6x^2 - 15x + 6
= 6x^2 - 12x - 3x +6
= 6x (x - 2) - 3 (x - 2)
= (x - 2) (6x - 3)
= 3 (x - 2) (x - 1)
2) 6x^2 - 20x + 6
= 6x^2 - 18x - 2x + 6
= 6x (x - 3) - 2 (x - 3)
= (x - 3) (6x - 2)
= 2 (x - 3) (3x - 1)
3) -10x^2 - 7x + 6
= -10x^2 + 5x - 12x + 6
= 5x (1 - 2x) + 6 (1 - 2x)
= (1 - 2x) (5x + 6)
4) 10x^2 - 7x - 12
= 10x^2 - 15x + 8x - 12
= 5x (2x - 3) + 4 (2x - 3)
= (2x - 3) (5x + 4)
good luck !
giúp mk vs
1,a^3b^2+ 18a^2b^2+ 108ab^2+ 216b^2
2, 64xy-96x^2y+ 48x^3-8x^4y
<br class="Apple-interchange-newline"><div id="inner-editor"></div>6x2−15x+6
=6x2−3x−12x+6
=3x(2x−1)−6(2x−1)
=(3x−6)(2x−1)
=3(x−2)(2x−1)
b) 6x2−20x+6
=6x2−2x−18x+6
=2x(3x−1)−6(3x−1)
=(2x−6)(3x−1)
=2(x−3)(3x−1)
c) −10x2−7x+6
=5x−10x2+6−12x
=5x(1−2x)+6(1−2x)
=(5x+6)(1−2x)
d) 10x2−7x−12
=10x2−15x+8x−12
=5x
1)6x^2-15x+6=6x^2-12x-3x+6
=6x(x-2)-3(x-2)=(6x-3)(x-2)=3(2x-1)(x-2)
2)6x^2-20x+6=6x^2-2x-18x+6=2x(3x-1)-6(3x-1)
(2x-6)(3x-1)=2(x-3)(3x-1)
3)-10x^2-7x+6=-10x^2+5x-12x+6=-5x(2x-1)-6(2x-1)=(-5x-6)(2x-1)
4)10x^2-7x-12=10x^2-15x+8x-12=5x(2x-3)+4(2x-3)=(5x+4)(2x-3)
4)
