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1. Which of the following will simplify to the
correct solutions of y = 2x2 + 5x - 7?

1. Which of the following will simplify to the correct solutions of y = 2x2 + 5x - 7?-example-1
User Nafeesa
by
8.3k points

1 Answer

4 votes

Answer:

Option B

Explanation:

Given quadratic equation is,

y = 2x² + 5x - 7

By comparing this equation with y = ax² + bx + c

a = 2, b = 5 and c = -7

Solution of the polynomial (2x² + 5x - 7) can be determined by the quadratic formula,


x=(-b\pm √(b^2-4ac))/(2a)

Substitute the values of a, b and c.


x=(-5\pm √(5^2-4(2)(-7)))/(2(2))


=(-5\pm √(25+56) )/(4)

Therefore, Option B will be answer.

User Erdnase
by
8.5k points

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