If (2a + 3b)(2c - 3d) = (2a - 3b)(2c + 3d), then :
Answer & explanation
Correct answer: option 2
Given,
(2a + 3b) (2c - 3d) = (2a - 3b) (2c + 3d)
= 4ac - 6ad + 6bc - 9bd = 4ac + 6ad - 6bc - 9bd
= 12bc = 12ad
= bc = ad
$\frac{a}{b}=\frac{c}{d}$
If (2a + 3b)(2c - 3d) = (2a - 3b)(2c + 3d), then :
Correct answer: option 2
Given,
(2a + 3b) (2c - 3d) = (2a - 3b) (2c + 3d)
= 4ac - 6ad + 6bc - 9bd = 4ac + 6ad - 6bc - 9bd
= 12bc = 12ad
= bc = ad
$\frac{a}{b}=\frac{c}{d}$