Question

Solve the following quadratic equations by factorisation.

i. √2x² + 7x + 5√2 = 0 to solve this quadratic equation by factorisation complete the following activity

ii. 3x² – 2√6x + 2 = 0

Answer 1

i.

By using the property, if the product of two numbers is zero, then at least one of them is zero, we get

∴ -5/√2 and -√2 are roots of the equation.

ii.

By using the property, if the product of two numbers is zero, then at least one of them is zero, we get

∴ The roots of the given quadratic equation are √2/√3 and √2/√3.