7x2 + 7x - 14 = 7(x2 + x - 2) = 7(x + 2)(x - 1)
2(x - 7)(x - 1)
15 + 14 + 14 + 11 + 2x + x = 75 Collect like terms 54 + 3x = 75 Subtract 54 3x = 21 Divide by 3 x = 7 ■
2 9 1 plus 1 is 2.
2x2+7/x1
1 plus 1 is 2. Plus 1 is 3. Plus 1 is 4. Plus 10 is 14. 14.
2 + 1 + 3 + 5 + 14 = 25
2+1+3+15+14=35
14
1-14+23=10
-14
56
x2+15x+14 = (x+1)(x+14)
14*13=182
6, 9, 1 and -14
5 + 6 + 2 + 1 = 14
13...... 9 plus 5 equals 14...... 14 minus 1 equals 13