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प्रश्न
Find the following product: (x + 4) (x + 7)
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उत्तर
Here, we will use the identity
\[\left( x + a \right)\left( x + b \right) = x^2 + \left( a + b \right)x + ab .\]
\[\left( x + 4 \right)\left( x + 7 \right)\]
\[ = x^2 + \left( 4 + 7 \right)x + 4 \times 7\]
\[ = x^2 + 11x + 28\]
संबंधित प्रश्न
Show that (3x + 7)2 − 84x = (3x − 7)2
Find the following product: (p2 + 16) \[\left( p^2 - \frac{1}{4} \right)\]
Evaluate the following: 103 × 96
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Expand the following:
(2p + 3) (2p – 4) (2p – 5)
Using algebraic identity, find the coefficients of x2, x and constant term without actual expansion
(x + 5)(x + 6)(x + 7)
By using identity evaluate the following:
73 – 103 + 33
Simplify:
(3x + 2y)2 + (3x – 2y)2
Simplify:
(2.5m + 1.5q)2 + (2.5m – 1.5q)2
Simplify:
(b2 – 49)(b + 7) + 343
