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HIGHER TIER a) Factorise the following equation into two bracket form: 2x^2-5x-12. b)2x^2-5x-12=0. Solve this equation to find the values of x, using your answer to part a). BONUS c) Sketch the function y=2x^2-5x-12, showing any x intercepts

a) Find two common numbers that ADD UP to give -5, and MULTIPLY TOGETHER to give (2*-12=) -24MULTIPLY TO -24 -1 and 24 1 and -24 -2 and 12 2 and -12 3 and -8 -3 and...

Answered by Jonathan V. • Maths tutor

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Solve the equation ((2x+3)/(x-4)) - ((2x-8)/(2x+1)) = 1. Give your answer to 2 decimal places.

Multiply both sides of the equation by the denominators to get:(2x+3)(2x+1) - (2x-8)(x-4) = (x-4)(2x+1)Expand all the brackets to get:(4x^2 + 6x + 2x + 3) - (2x^2-8x-8x+32) = 2x^2-8x+x-4Simplify both side...

Answered by Natalie S. • Maths tutor

3271 Views

What are the four chambers of the heart and what is the order blood flows through them?

The four chambers of the heart are the right atrium, right ventricle, left atrium and left ventricle.Deoxygenated blood (blood with no oxygen) flows into the right side of the heart via the superior and i...

Answered by Kirk C. • Human Biology tutor

10179 Views

How can I sound like a native speaker?

Good question! How can you tell when you're speaking to a non-native speaker of English? (Depending on the characteristics they mention, I lay out my answer.)
Get to know the grammar of the language...

Answered by Agnes T. • Italian tutor

2335 Views

Outline two types of determinism

Biological determinism refers to the concept that all human behaviour is innate and determined by factors like our genes, hormones and neurotransmitter systems. The biological approach looks at behaviour ...

Answered by Miriam M. • Psychology tutor

6063 Views