find the product
4xy,5y²x(-x²)
Answers
Answered by
1
Step-by-step explanation:
All the information you need is in the expression.
Read from right to left.
Find the factors of 5 which subtract to give 4.
The signs will be different (because of the minus), there will be more positives (because of +)
5 is a prime number - the only factors are 1 x 5 and we see 5 -1 = 4.
We need +5 and -1 to give +4
This leads to the two brackets:
(
x
y
)
(
x
y
)
fill in the variables
(
x
5
y
)
(
x
1
y
)
fill in the factors
(
x
+
5
y
)
(
x
−
y
)
fill in the signs
Answered by
3
Product is
4xy × 5y^2x(-x^2)
= -20 x^4y^3
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