Advertisements
Advertisements
प्रश्न
Evaluate: (c + 5)(c - 3)
बेरीज
Advertisements
उत्तर
(c + 5)(c - 3) = c (c - 3) +5 (c - 3)
= c2 - 3c + 5c - 15
= c2 + 2c - 15
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Factorize x( x - 2)( x - 4) + 4x - 8
Factorize `9(2a - b)^2 - 4(2a - b) - 13`
What are the possible expressions for the dimensions of the cuboid whose volume is 3x2 - 12x.
Factorize 8a3 + 27b3 + 36a2b + 54ab2
Multiply: x2 + 4y2 + z3 + 2xy + xz − 2yz by x − 2y − z
Separate the constants and variables from the following :
`-7,7+"x",7"x"+"yz",sqrt5,sqrt("xy"),(3"yz")/8,4.5"y"-3"x",`
8 −5, 8 − 5x, 8x −5y × p and 3y2z ÷ 4x
Divide: 10a3 - 15a2b by - 5a2
Write the variables, constant and terms of the following expression
b + 2
In a polynomial, the exponents of the variables are always ______.
Match Column I with Column II in the following:
| Column I | Column II |
| 1. The difference of 3 and a number squared | (a) 4 – 2x |
| 2. 5 less than twice a number squared | (b) n2 – 3 |
| 3. Five minus twice the square of a number | (c) 2n2 – 5 |
| 4. Four minus a number multiplied by 2 | (d) 5 – 2n2 |
| 5. Seven times the sum of a number and 1 | (e) 3 – n2 |
| 6. A number squared plus 6 | (f) 2(n + 6) |
| 7. 2 times the sum of a number and 6 | (g) 7(n + 1) |
| 8. Three less than the square of a number | (h) n2 + 6 |
