What is 4/11 ÷ 7/8 equal too
1 answer:
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Answer:
D
Step-by-step explanation:
you want to solve it out
start with multiplying z to each. you don't multiply it to the 6 because it is in the same parenthesis set, but you multiply it to everything in the other set. After multiplying, you get: ,
,
now do that to the 6. After multiplying you get: ,
,
now set it all next to each other +
+
+
+
+
now combine like terms. start with the to the highest power. since there is only one that has a third power, you put that one first. then you combine the squared ones, and so forth.
work combining the squares:
work combing the single z's:
to get this: +
+
+
so, the answer is D
<h3>Answer: x = -5, -4, 4 and 5.</h3><h3>All four zeros are real solutions.</h3>
Step-by-step explanation:
Given the polynomial equation .
Adding 400 on both sides to get rid 400 from right side and set 0 on right side, we get
.
.
Factoring by product sum rule.
We need product of 400 and sum upto -41.
We can see that 400 = -25 × -16 = 400 and -25-16 = -41.
Therefore,
Making it into two groups, we get
Factoring out GCF of each group, we get
Factoring out and
separately by difference of the squares identity
, we get
and
.
Therefore,
Applying zero product rule,
x-5=0
x+5=0
x-4=0 and
x+4=0.
Therefore,
<h3>x = -5, -4, 4 and 5.</h3><h3>All four zeros are real solutions.</h3>