Advertisements
Advertisements
प्रश्न
Multiply:
(7x + y) by (x + 5y)
Advertisements
उत्तर
To multiply, we will use distributive law as follows:
\[\left( 7x + y \right)\left( x + 5y \right)\]
\[ = 7x\left( x + 5y \right) + y\left( x + 5y \right)\]
\[ = 7 x^2 + 35xy + xy + 5 y^2 \]
\[ = 7 x^2 + 36xy + 5 y^2\]
Thus, the answer is \[7 x^2 + 36xy + 5 y^2\].
APPEARS IN
संबंधित प्रश्न
Find the value of (5x6) × (−1.5x2y3) × (−12xy2) when x = 1, y = 0.5.
Evaluate each of the following when x = 2, y = −1.
\[(2xy) \times \left( \frac{x^2 y}{4} \right) \times \left( x^2 \right) \times \left( y^2 \right)\]
Simplify: x3y(x2 − 2x) + 2xy(x3 − x4)
Simplify: x(x + 4) + 3x(2x2 − 1) + 4x2 + 4
Simplify: a2(2a − 1) + 3a + a3 − 8
Multiply:
(2x + 8) by (x − 3)
Multiply: \[\left( - \frac{a}{7} + \frac{a^2}{9} \right)by\left( \frac{b}{2} - \frac{b^2}{3} \right)\].
Simplify : (x − y)(x + y) (x2 + y2)(x4 + y2)
Show that: \[\left( \frac{4m}{3} - \frac{3n}{4} \right)^2 + 2mn = \frac{16 m^2}{9} + \frac{9 n^2}{16}\]
Multiply:
23xy2 × 4yz2
