Help! i’ll give brainliest !multiply each question by a number that produces opposite coefficient for x and y. multiplying the first equation by will create opposite x terms

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step-by-step explanation:

i hope this : )

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

the answer is a

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a