Hello, slykksta!
You're forgetting that: .
We have: .
We have: .
We have: .
We have: .
Some more problems I would like checked please. Numbers in red are exponents. My answers are in bold.
Problem 1: (Simplify)
(4a2) (5a)
= 42(a2) * 5(a)
= 4a2 * 5a
= 4 * 5 * a2 * a
= 20a2
________
Problem 2: (Simplify)
(-3xy) (4x2y3)
= -3 (x)(y) * 4 (x2)(y3)
= -3xy * 4x2y3
= -3 * 4 * x * x2 *y * y3
= -12x2y3
__________
Problem 3: (Simplify)
(-3x3y2)(5x5y)
= -3(x3)(y2) * 5(x5)(y)
= -3x3y2 * 5x5y
= -3 * 5 * x3 * x5 * y2 * y
= -15x15y2
__________
Problem 4: (Simplify)
(-3ab2c3)(-5ac)
= -3(a)(b2)(c3) * -5(a)(c)
= -3ab2c3 * -5ac
= -3 * -5 * a * b2 * c3 *c
= 15ab2c3
Thanks!
Several of your steps here don't make sense.
I'm seeing a pattern here. Recall the rule for addition of exponents:
So .
Try this one again.
Ah! I see. You are multiplying the exponents.
You multiply exponents in this situation:
Same problems as I mentioned above.
-Dan