Answer:
-4x - 20x
Step-by-step explanation:
Multiply 2 by -10
Answer:
where's the picture?
Step-by-step explanation:
can I have the pic po
For these kinds of expressions use FOIL (first, outside, inside, last).
-2x • 9x = -18x^2
-2x • -3y = 6xy
8y • 9x = 72 xy
8y • -3y = -24y^2
Now combine them all:
-18x^2 + 78xy - 24y^2
X2<span> - 25 = x</span>2<span> - 5</span>2<span> = (x - 5)(x + 5)
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