What is the square root mean

The square root is the number that is multiplied by itself to make the number.

For example to work out the square root of 144. you would need to find a number that when squared is equal to 144, which is 12.

1) Find the number that when squared makes the square root number.

- 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

f

step-by-step explanation:

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