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Solve (x+10)(x-16)=0

x+10=0x= -10x-16=0x= 16

ST
Answered by Sophie T. Maths tutor
2702 Views

(x+3)(x-4)(x+5) is identical to x^3 +ax^2 -17x+b. Find the value of a and the value of b.

Multiplying out the first two brackets gives (x^2-x-12)(x+5). Multiplying the remaining brackets gives x^3 + 4x^2 -17x - 60.

a = 4b = 60

AE
Answered by Aeron E. Maths tutor
7615 Views

Solve the simultaneous equations : x ^2+2y=9, y=x+3 to find solutions for x and y.

We must use the substitution method for this question because the first equation is a quadratic. Take the more simple equation (the second one), and use that to substitute the value for y in to the first ...

CR
Answered by Callum R. Maths tutor
2737 Views

How to I approach an unseen text/poem

To any student who is required to analyse an unseen text in an exam setting, I would advise them to a set of techniques to notice when annotating the poem which would allow them to uncover literary techni...

DG
Answered by Dulcie G. English tutor
2404 Views

What is the Bohr effect and how does it affect oxygen unloading?

The Bohr effect describes the change in affinity for oxygen haemoglobin has as a result of an increased partial pressure of CO2. It occurs due to the reaction between CO2 and H20, catalysed by carbonic an...

TM
Answered by Tom M. Biology tutor
8303 Views

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