The given quadratic expression; 5b² -6b -2 is prime because the discriminant is not a perfect square.
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What is the discriminant of the expression?</h3>
According to the task content; it is required to identify if the expression is prime.
On this note, it follows that the discriminant of the expression can be evaluated as follows;
= 36 -(4× 5 × -2)
= 76.
Hence, the expression is prime since 76 is not a perfect square.
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ax+r=7
Move ax to the other side. +positive ax changes to -negative ax
ax-ax+r=7-ax
r=7-ax
Answer: r=7-ax or r=-ax+7 ( same thing) but rearranged
Answer:
26
Step-by-step explanation:
8 + 3n
n = 6
8+3(6)
= 8 + 16
= 26
There is no whole number that is half of 11 but the half number is 5.5
Answer:
2x^2y+9y^2-7x^2
Step-by-step explanation:
Just combine like terms.
