Advertisements
Advertisements
प्रश्न
Show that: (4pq + 3q)2 − (4pq − 3q)2 = 48pq2
Advertisements
उत्तर
LHS
\[ = \left( 4pq + 3q \right)^2 - \left( 4pq - 3q \right)^2 \]
\[ = 4\left( 4pq \right)\left( 3q \right) \left[ \because \left( a + b \right)^2 - \left( a + b \right)^2 = 4ab \right]\]
\[ = 48p q^2 \]
= RHS
Because LHS is equal to RHS, the given equation is verified.
APPEARS IN
संबंधित प्रश्न
Write down the product of −8x2y6 and −20xy. Verify the product for x = 2.5, y = 1.
Find the following product:
−11y2(3y + 7)
Simplify: 2a2 + 3a(1 − 2a3) + a(a + 1)
Simplify: a2b(a3 − a + 1) − ab(a4 − 2a2 + 2a) − b (a3 − a2 − 1)
Multiply:
(7x + y) by (x + 5y)
Multiply:
(0.8a − 0.5b) by (1.5a − 3b)
Find the following product and verify the result for x = − 1, y = − 2:
(3x − 5y) (x + y)
Show that: (3x + 7)2 − 84x = (3x − 7)2
Multiply:
(12a + 17b) × 4c
Which formula represents multiplication of powers with the same base?
