<span>(5x^7 y^2)(-4x^4 y^5) =-20x^a y^b
</span><span>
solve this:
(5x^7 y^2)(-4x^4 y^5)
= -20 x^(7 + 4) y^(2 + 5)
= -20 x^11 y^7
answer
</span>A) a=11, b=7
Step-by-step explanation:
I don't know how to do any of these if you could give me another question that's possibly easier
I believe B. is your answer. If you use the ac method, you will multiply 8 and 3 which is 24. So now, what factors of 24 will give you 10?6 and 4
Now substitute

Now do factorization by grouping.

Therefore, your answer is (4x+3)2x+1)
No, there are lots of quadrilaterals. <span>Examples of other quadrilaterals
are rhombus, kite, trapezoid, parallelogram etc</span>
Answer:

Step-by-step explanation:
1. Distribute the X across the equation: 
2.
3.
3.