Advertisements
Advertisements
Question
Simplify : −3 (1 − x2) − 2{x2 − (3 − 2x2)}
Solution
−3 (1 − x2) − 2 {x2 − (3 − 2x2)}
= −3 + 3x2 − 2 {x2 − 3 + 2x2}
= −3 + 3x2 − 2{3x2 − 3}
= −3 + 3x2 − 6x2 + 6
= 3 − 3x2
APPEARS IN
RELATED QUESTIONS
Solve for x : (13)√x = 44 - 34 - 6
If (am)n = am .an, find the value of : m(n - 1) - (n - 1)
Evaluate :
`[ 2^n xx 6^(m + 1 ) xx 10^( m - n ) xx 15^(m + n - 2)]/[4^m xx 3^(2m + n) xx 25^(m - 1)]`
Evaluate : `((x^q)/(x^r))^(1/(qr)) xx ((x^r)/(x^p))^(1/(rp)) xx ((x^p)/(x^q))^(1/(pq))`
Simplify : `2[6 + 4 {"m"-6(7 - overline("n"+"p")) + "q"}]`
Write each of the following in the simplest form:
a2 x a3 ÷ a4
Write each of the following in the simplest form:
`"a"^(1/3) ÷ "a"^(-2/3)`
Write the following in the simplest form:
(b-2 - a-2) ÷ (b-1 - a-1)
Simplify the following:
`("a"^(1/3) + "a"^(-1/3))("a"^(2/3) - 1 + "a"^(-2/3))`
Simplify the following:
`(5^x xx 7 - 5^x)/(5^(x + 2) - 5^(x + 1)`
