4d(2d-9)
8d^2 - 36d
(3x+4)(x-2)
3x^2-6x+4x-8
Simplifying, we get:
3x^2 - 2x - 8
To simplify the expression 4d(2d - 9), we can use the distributive property of multiplication over addition/subtraction.
First, let's distribute the 4d to both terms inside the parentheses:
4d * 2d = 8d^2
4d * (-9) = -36d
Now we can write the simplified expression:
8d^2 - 36d
So, the simplified form of 4d(2d - 9) is 8d^2 - 36d.