Question

find the zero of a quadratic polynomial 2x² - 50​

Answer 1

Answer:

2x² - 50 = 0

2x² = 50

x² = 25

x = +5

So, zeroes of 2x² - 50 are +5 and -5

Hope This helps ☺️

Answer 2

Given

• f(x)=2x²-50

To find

• zero of a quadratic polynomial

Solution

$\\ \sf→2x²-50)=0$

Taking 2 common from 2x² and 50

$\\ \sf→2(x²-25)=0$

Transfering 2 from LHS to RHS

$\\\sf→(x)²-(5)²=0/25$

using Formula (a)²-(b)²=(a+b)(a-b)

$\\ \sf→(x-5)(x+5)= 0$

$\sf{x-5=0 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x + 5 = 0} \\ \sf{x=5\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = - 5}$

• Therefore the Zeros of Quadratic polynomial f(x)= 5 and -5.