Question
Find the HCF of 15x2 + 8x – 12, 3x² + x
– 2, 3x² - 2x, 9x² - 12x + 4Solution
1. 15x2 + 8x – 12 = 15x2 +18x-10x-12 =3x(5x+6)-2(5x+6) =(5x+6) (3x-2) 2. 3x² + x – 2: 3x2+3x-2x-2 3x(x+1)-2(x+1) =(x+1) (3x-2) 3. 3x² - 2x = x(3x-2)  4. 9x² - 12x + 4 9x2 -6x-6x+4 =3x(3x-2)-2(3x-2) =(3x-2) (3x-2) Now we can see in all equations (3x-2) is the common factor, so it will be HCF
19.89% of 449.67 + 14.67% of 299.89 - 9.89% of 99.79 = ?
`(sqrt(960.87)xx9.932+sqrt(629.998)xx26.385)/(sqrt(1028.902)xx4.977)=?`
Find the approximate value of Question mark(?). There is no requirement to find the exact value.
? = 200.14 + 27.98 × 16.05 − (10.03)² - 12.9...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
1299.999 ÷ 325.018 × 24.996 = ?
What approximate value should replace the question mark?
99.95 − √529 × 3 + 1439.80 ÷ 12.02 = ?
619.97 ÷ 20.01 X 124.99 ÷ 24.91 = ?
124% of 620.99 + 11.65% of 1279.23 = ?
What approximate value should replace the question mark?
9.96% of 1200.10 − 25% of 4800 = ? − 7000.20
Relevant for Exams:
