Q. Form a quadratic poly nomial One of whose zero is 2+3& sum of zeroes is 4 .
Identify Zero and Sum: Identify the given zero and the sum of the zeroes.We are given one zero of the quadratic polynomial as 2+3 and the sum of the zeroes as 4.
Find Other Zero: Find the other zero using the sum of the zeroes.If the sum of the zeroes is 4 and one of the zeroes is 2+3, then the other zero, let's call it 'b', can be found using the equation:Sum of zeroes = Zero 1 + Zero 24=(2+3)+bNow, solve for 'b':b=4−(2+3)b=2−3
Write Quadratic Polynomial: Write the quadratic polynomial using the zeroes.The quadratic polynomial can be written in its factored form as:f(x)=(x−Zero 1)(x−Zero 2)Substitute the zeroes into the equation:f(x)=(x−(2+3))(x−(2−3))
Expand Factored Form: Expand the factored form to get the standard form of the quadratic polynomial.f(x)=(x−2−3)(x−2+3)Now, use the difference of squares formula, which states that (a−b)(a+b)=a2−b2:f(x)=(x−2)2−(3)2f(x)=(x2−4x+4)−3f(x)=x2−4x+4−3f(x)=x2−4x+1
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