Question

roots of quadratic equations X2+18x+72=0​

Answer 1

Answer:

hope it helps you... best of luck...

Answer 2

QUESTION:

ROOTS OF QUADRATIC EQUATION

${x}^{2} + 18x + 72 = 0$

ANSWER:

GIVEN EQUATION IS IN THE FORM OF

$a {x}^{2} + bx + c = 0$

STEP 1.

We have to split the middle term in such a way that it's Sum equal to b i.e. 18 And product will be equal to a×c i.e. 1×72.

${x}^{2} + 12x + 6x + 72$

STEP 2 .

TAKING THE COMMON FACTOR

$x(x + 12) + 6(x + 12)$

FACTORS ARE:

$(x + 6)(x + 12)$

WHERE;

$x = - 6 \\ \\ \\ x = - 12$

FINAL ANSWER:

$- 6 \: and \: - 12$

PlZ MARK AS BRAINLIEST!!!