Advertisements
Advertisements
Question
When y = –1, the value of the expression 2y – 1 is 3
Options
True
False
Advertisements
Solution
When y = –1, the value of the expression 2y – 1 is 3 - False
APPEARS IN
RELATED QUESTIONS
Factorize `x^2 - 2sqrt2x - 30`
Factorize `x^2 + 2sqrt3x - 24`
Factorize `5sqrt5x^2 + 20x + 3sqrt5`
Factorize the following expressions:
10x4y – 10xy4
Factorize the following expressions:
x3y3 + 1
(2x - 3y)3 + (4z - 2x)3 + (3y - 4z )3
Simplify : \[\frac{1 . 2 \times 1 . 2 \times 1 . 2 - 0 . 2 \times 0 . 2 \times 0 . 2}{1 . 2 \times 1 . 2 + 1 . 2 \times 0 . 2 + 0 . 2 \times 0 . 2}\]
If a2 + b2 + c2 = 250 and ab + bc + ca = 3, find a + b + c.
Factorize : x2 − 1 − 2a − a2
Mark the correct alternative in each of the following: The factors of a2 − 1 − 2x − x2 are
If x3 − 3x2 + 3x − 7 = (x + 1) (ax2 + bx + c), then a + b + c =
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
Write the number of the term of the following polynomial.
23 + a x b ÷ 2
Multiply: (2x + 3y)(2x - 3y)
Divide: 4a2 - a by - a
Divide: x3 − 6x2 + 11x − 6 by x2 − 4x + 3
Write in the form of an algebraic expression:
Area of a square is square of its side.
3p2 – 5pq + 2q2 + 6pq – q2 + pq is a
A student wrote an algebraic expression for “5 less than a number n divided by 3” as `n/3 - 5`. What error did the student make?
Express the following properties with variables x, y and z.
Associative property of addition
