Question

One number is 2 more than 4 times another. Their product is 20
Find the four numbers.

Answer 1

Answer:

$4x + 2 \times x = 20$

${4x}^{2} + 2x = 20$

${4x}^{2} + x = 10$

${x}^{2} + x = 2$

so, the two numbers are 5 and 4

Step-by-step explanation:

hope helpful

Answer 2

Answer:

the combinations are

either 2 and 10

or -2.5 and -8

Step-by-step explanation:

let one unknown number be x

therefore

other number is 4x + 2

their product is 20 means

(4x+2) × x = 20

4x² + 2x = 20

2x² + x = 10

solving this, x can be either 2 or -2.5

If x=2, then 4x+2= 10

If x= -2.5, then 4x+2 = -8

so the combinations are

either 2 and 10

or -2.5 and -8

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