Math, 30.01.2020kelly072

How many real roots does the quadratic equation ײ+5x+7=0 have?

Answers

possible answers: -6, 6, using reverse operation method

(opposite of subtraction, use addition)

18 + 30 = 48

(opposite of division, use multiplication

48 x 3 = 144

(opposite of square, use square root and can be splitted into 2 operations)

√144

=-12 or 12

(opposite of multiplication, use division)

= -12 / 2 or 12/2

= -6 or 6

answer:

step-by-step explanation:

0955511588

It has no real roots


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