The diagonal of a square is $\sqrt{2}$ inches long. How many inches long is the side of the square?

is there like a picture to go with it that will help solve it???

Since a diagonal of a square breaks up the square into two 45-45-90 triangles, a diagonal is √2 times longer than a side. Thus, the length of a side of the square is√2/√2=1 inch.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

step-by-step explanation: