Advertisements
Advertisements
प्रश्न
Multiply:
[−3d + (−7f)] by (5d + f)
Advertisements
उत्तर
To multiply, we will use distributive law as follows:
\[\left[ - 3d + \left( - 7f \right) \right]\left( 5d + f \right)\]
\[ = \left( - 3d \right)\left( 5d + f \right) + \left( - 7f \right)\left( 5d + f \right)\]
\[ = \left( - 15 d^2 - 3df \right) + \left( - 35df - 7 f^2 \right)\]
\[ = - 15 d^2 - 3df - 35df - 7 f^2 \]
\[ = - 15 d^2 - 38df - 7 f^2 \]
Thus, the answer is \[- 15 d^2 - 38df - 7 f^2\].
APPEARS IN
संबंधित प्रश्न
Find each of the following product:
\[\left( - \frac{7}{5}x y^2 z \right) \times \left( \frac{13}{3} x^2 y z^2 \right)\]
Find the following product:
2a3(3a + 5b)
Multiply: \[\left( \frac{3}{5}x + \frac{1}{2}y \right) by \left( \frac{5}{6}x + 4y \right)\]
Find the following product and verify the result for x = − 1, y = − 2:
(3x − 5y) (x + y)
Simplify:
a2b2(a + 2b)(3a + b)
Simplify : (x − y)(x + y) (x2 + y2)(x4 + y2)
Show that: (3x + 7)2 − 84x = (3x − 7)2
Show that: (4pq + 3q)2 − (4pq − 3q)2 = 48pq2
Multiply:
16xy × 18xy
Solve the following equation.
5(x + 1) = 74
