Question

Find the roots of the quadratic equation x square − 1.21 = 0

Answer 1

Answer:

${x}^{2} - 1.21 = 0 \\ x { }^{2} - {1.1}^{2} = 0$

(

$(x + 1.1)(x - 1.1)$

Step-by-step explanation:

we use formula

$( {a}^{2} - {b)}^{2} = (a + b)(a - b)$