Advertisements
Advertisements
Question
Use a suitable identity to get the following products.
`(x/2 + (3y)/4)(x/2 + (3y)/4)`
Advertisements
Solution
`(x/2 + (3y)/4)(x/2 + (3y)/4)` = `(x/2 + (3y)/4)^2`
= `(x/2)^2 + 2(x/2)((3y)/4) + ((3y)/4)^2` [(a + b)2 = a2 + 2ab + b2]
= `x^2/4 + (3xy)/4 + (9y^2)/16`
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the following squares by suing the identities
(0.4p − 0.5q)2
Simplify (a2 − b2)2
Simplify (7m − 8n)2 + (7m + 8n)2
Using identities, evaluate 712
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 103 × 104
Use a formula to multiply of (4z – 5y)(4z + 5y)
Expand: (2x + 3y)2
(a + b)2 – 2ab = ______ + ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 14x + 49
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2ax + 1
