Answer:
third one
Step-by-step explanation:
the third one should be the answer
step 4 came out becoz of taking the common factor(x+1) and combining x2 and (-16)
Step 5 came out becoz of the theory of (a^2-b^2) = (a+b)(a-b)
ps 16 here is equal to 4^2
To find 20 percent of a number, multiply the number by 0.2. In this instance, 0.2 x 30 = 6. Therefore, 20 percent of 30 is equal to 6.<span>
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Answer: 30 miles per hour
Step-by-step explanation:
Speed = distance / time
= 300 / 10
= 30 miles per hour
Answer:
B) 3(2x+3)^2
Step-by-step explanation:
12x^2+36x+27
factor out the 3 first,
3(4x^2+12x+9)
factor out the trinomial 4x^2+12x+9,
3(2x+3)(2x+3)
3(2x+3)^2
The answer should be D. -7x-8
2(x-4)+6x-5x times 3
distribute the 2
2x-8+6x-5x times 3
Multiply the -5x and 3
2x-8+6x-15x
Combine like terms
-7x-8
