The value of c is 81/64 for the expression a perfect square trinomial.
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What is an Expression?</h3>
An expression can be defined as a mathematical statement that consists of variables, constants and mathematical operators simultaneously.
It is given that an expression
x² +9/4x +c is a perfect square polynomial
c =?
(a+b)² = a² +2ab+b²
2ab = 9/4
b = 9/8
c = b² = 81/64
Therefore the value of c is 81/64 for the expression a perfect square trinomial.
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Answer:576
Step-by-step explanation:
Answer:
The number is 23.
Step-by-step explanation:
5n + 7 = 122 Subtract 7 on both sides
5n = 115 Isolate the variable by dividing 5 on both sides
n = 23
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