The expression 2r^2+18x +40 has a greatest common factor of 2.
1 answer:
2(x^2+9x+20)
2(x^2+5x+4x+20)
2{x(x+5)+4(x+5)}
2(x+5)(x+4)
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Answer:
b and d
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Answer: B
Step-by-step explanation: r≈21.01ft
X=15
Since 20/4 is 5 and 5•3 is 15
