Write the quadratic equation in general form. what is the value of b2 - 4ac? 1 = 2x2 + 7x

The general form of quadratic equation is 2x² + 7x - 1 = 0 and value of  b² - 4ac is 57 .

Step-by-step explanation:

The standard form of quadratic equation is  ax² + bx + c = 0

Where  a, b, and c being constants, or numerical coefficients  and x is an variable.

As given the expression

1 = 2x2 + 7x

Simplify the above

2x² + 7x - 1 = 0

This is general form of quadratic equation .

a = 2 , b = 7 , c = -1

Putting all these values in the formula

= b² - 4ac

= 7 × 7 - 4 × 2 × -1

= 49 + 8

= 57

Therefore the general form of quadratic equation is 2x² + 7x - 1 = 0 and value of  b² - 4ac is 57 .

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: