Combine the like terms to make a simpler expression: 5k (-2k)-(-1)
2 answers:
Hey there, Lets solve this problem together.
Our first step will be to g<span>ather like terms
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Simplify 5×−2k×k to −5×2k×k
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Simplify <span><span>5×2k×k</span></span><span> to </span><span><span>10<span>k^2
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<span><span><span>
</span></span></span>
Our first step will be to g<span>ather like terms
</span>
<span>
Simplify 5×−2k×k to −5×2k×k
</span>
Simplify <span><span>5×2k×k</span></span><span> to </span><span><span>10<span>k^2
</span></span></span>
</span></span></span>
Answer: The required simpler expression is
Step-by-step explanation: We are given to combine the terms to make a simpler expression from the following expression :
Since the given expression contain terms with unknown variable k and the constant terms, so we can combine them as follows :
Thus, the required simpler expression is
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Answer:
• x = -4, x = 0, x = 1
Step-by-step explanation:
x is a factor of all terms, so x=0 is a zero. (Eliminates choices 1 and 5.)
The sum of coefficients is 0, so x=1 is a zero. (Eliminates choices 3 and 4.)
Reversing the sign of the odd-degree terms gives signs of -++, so there is one sign change, hence one negative real root (by Descartes' rule of signs). This confirms choice 2 as the answer.
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Of course, your graphing calculator can answer this almost as quickly.
hopefully this answer can help you to answer the next question
