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1 answer:
The expression in the form of a(x+b)^{2}+c will be 2(x+5)^{2}- 1.
<h3>What is a quadratic equation?</h3>A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
Express; 2x^{2} +5x-1 as a(x+b)^{2}+c
We have been given
a = 2 , b= 5 and c = -1.
Now, substitute the values;
Hence, the expression will be 2(x+5)^{2}- 1.
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Try this solution:
1. according to the definition of logarithm
where a∈(0;1)∪(1;+oo) and b>0.
2. The variable is only in b, using item 1. it is possible to write: x+3>0.
⇒ x>-3.
Answer: D(f)=(-3;+oo).
1. according to the definition of logarithm
2. The variable is only in b, using item 1. it is possible to write: x+3>0.
⇒ x>-3.
Answer: D(f)=(-3;+oo).