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Simplify (x + 3)(2x + 5) - (x - 1)

Start by expanding the brackets: 2x^2 + 5x + 6x + 15 = 2x^2 +11x + 15 Combine the two parts of the equation: 2x^2 + 11x + 15 - x + 2 = 2x^2 + 10x + 17

Answered by Hannah M. • Maths tutor

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Fully simplify: (y^2 x y^5) / y^3

(y²x y⁵) / y³ When multiplying, the indices must be added together, therefore y² x y⁵ = y²⁺⁵ = y⁷ (y²x y⁵

Answered by Jemima P. • Maths tutor

4768 Views

How does Auden tell the story in James Honeyman?

James Honeyman is a Ballad that follows the life of an isolated and ostracized protagonist - illustrating his profound scientific discorveries and the effect they have on his family. The story follows Hon...

Answered by Harry B. • English Literature tutor

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Increase £160 by 45%.

If £160 = 100%, the number we are trying to find (let's call this X) equals 145%. (Place numbers in 2x2 grid) 100% £160 145% X Multiply the two diagonal numbers together, then divide by the number ...

Answered by Jemima P. • Maths tutor

3916 Views

You are given layers A,F,D,H without knowing their relative or specific age. Write two ways you can know which layer is the oldest.

The simpliest way of knowing is when the layers are horizontal, the stratigraphy principle of superposition applies so the top layer is the youngest the bottom layer is the oldest.

Answered by Theodoros T. • Geology tutor

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