the lcm of (3x²+9x²+6)and(x²-3x-10) is
Answers
Step-by-step explanation:
.1) x²+5x + 6
=> x² + 5x + 6
=> x² +3x + 2x + 6
=> x(x + 3 ) +2 ( x + 3)
=> (x + 3) ( x + 2 ) <<<<Answer
.2) x² +2x -3
=>x² + 2x -3
=> x² +3x -x - 3
=> x(x + 3 ) -1 (x + 3)
=> (x + 3 ) (x -1) <<Answer
.3) 3x² +2x - 1
=> 3x² + 2x - 1
=> 3x² +3x - x -1
=> 3x(x + 1) -1 ( x + 1)
=> (x + 1) (3x - 1) << Answer
.4)9x² - 4
=> 9x² +0x -4
=> 9x² +6x -6x -4
=>3x(3x + 2) -2 (3x +2)
=> (3x + 2 ) (3x - 2 ) <<Answer
.5) x² - 3x - 10
=> x² - 3x -10
=> x² -5x +2x - 10
=> x(x - 5) +2 ( x - 5)
=> (x- 5) (x + 2) <<Answer
.6) x² - 18x + 45
=> x² - 18x + 45
=> x² - 15x -3x + 45
=> x(x - 15) -3 (x-15)
=> (x - 15) (x - 3) <<Answer
.7)11x² +18x + 7
=> 11x² + 18x + 7
=> 11x² + 11x +7x + 7
=> 11x(x +1) +7(x + 1)
=> (x + 1) (11x + 7) <<Answer
.8) 6x² + 11x + 3
=> 6x² + 11x+ 3
=> 6x² +9x + 2x + 3
=> 3x(2x + 3) +1 (2x + 3)
=> (2x + 3) (3x + 1) << Answer
.9) x² + x - 20
=> x² + x - 20
=> x² +5x -4x - 20
=> x(x + 5) -4( x + 5)
=> (x + 5) (x - 4) <<Answer
.10) y² - y - 30
=> y² - y - 30
=> y² -6y +5y -30
=> y(y -6) +5( y- 6)
=> (y - 6) (y + 5) << Answer
.11) 6y² +y - 1
=> 6y² + y - 1
=> 6y² + 3y -2y - 1
=> 3y(2y + 1) - 1(2y +1)
=> (2y + 1) (3y -1) <<Answer
.12) 12x² -2x -4
=> 12x² - 2x - 4
=> 12x² -8x + 6x - 4
=> 4x(3x - 2)+2(3x - 2)
=> (3x -2) (4x +2) <<Answer
.13) x² -9x + 20
=> x² - 9x + 20
=> x² -5x - 4x + 20
=> x(x -5) - 4( x - 5)
=> (x - 5) (x - 4) <<Answer
.14)x² +8x + 15
=> x² +8x +15
=> x² +5x +3x + 15
=> x(x + 5) +3( x + 5)
=> (x + 5) (x + 3) <<Answer
.15) y² - 8y + 15
=> y² -8y +15
=> y² -5y-3y + 15
=> y(y - 5) - 3(y - 5)
=> (y - 5) (y - 3) <<Answer
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