Advertisements
Advertisements
Question
The product of (x + 5) and (x – 5) is ____________
Advertisements
Solution
The product of (x + 5) and (x – 5) is x2 – 25
APPEARS IN
RELATED QUESTIONS
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
4x2 – 49y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
28ay2 – 175ax2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(2p^2)/25 - 32q^2`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
49x2 – 36y2
Factorise the expression and divide them as directed:
(9x2 – 4) ÷ (3x + 2)
The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle. `(pi = 22/7)`
Verify the following:
(ab + bc)(ab – bc) + (bc + ca)(bc – ca) + (ca + ab)(ca – ab) = 0
Verify the following:
(a + b + c)(a2 + b2 + c2 – ab – bc – ca) = a3 + b3 + c3 – 3abc
Verify the following:
(p – q)(p2 + pq + q2) = p3 – q3
Find the value of a, if pq2a = (4pq + 3q)2 – (4pq – 3q)2
