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प्रश्न
Multiply:
(0.8a − 0.5b) by (1.5a − 3b)
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उत्तर
To multiply, we will use distributive law as follows:
\[\left( 0 . 8a - 0 . 5b \right)\left( 1 . 5a - 3b \right)\]
\[ = 0 . 8a\left( 1 . 5a - 3b \right) - 0 . 5b\left( 1 . 5a - 3b \right)\]
\[ = 1 . 2 a^2 - 2 . 4ab - 0 . 75ab + 1 . 5 b^2 \]
\[ = 1 . 2 a^2 - 3 . 15ab + 1 . 5 b^2 \]
Thus, the answer is \[1 . 2 a^2 - 3 . 15ab + 1 . 5 b^2\].
संबंधित प्रश्न
Find each of the following product:
(7ab) × (−5ab2c) × (6abc2)
Find each of the following product:
(−4x2) × (−6xy2) × (−3yz2)
Find each of the following product:
\[\left( 0 . 5x \right) \times \left( \frac{1}{3}x y^2 z^4 \right) \times \left( 24 x^2 yz \right)\]
Find the following product:
−5a(7a − 2b)
Multiply \[- \frac{3}{2} x^2 y^3 by (2x - y)\] and verify the answer for x = 1 and y = 2.
Multiply:
(7x + y) by (x + 5y)
Multiply: \[\left( - \frac{a}{7} + \frac{a^2}{9} \right)by\left( \frac{b}{2} - \frac{b^2}{3} \right)\].
Multiply:
(2x2 − 1) by (4x3 + 5x2)
Simplify:
(x3 − 2x2 + 5x − 7)(2x − 3)
Multiply:
23xy2 × 4yz2
