QUESTION 1 The sum of two numbers is 10. Five times the first number plus three times the second number is 36. Find the numbers

QUESTION 2
Matthew mixes pretzels that sell for $1.50 a pound with cereal that sells for $3.00 a pound. He wants to make 12 pounds of mixture to sell for $2.00 a pound

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

a

step-by-step explanation:

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