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Without expanding any brackets work out the exact solutions of 9(x+3)^2=4

Divide through by 9 giving:(x+3) 2 = 4/9 Square root both sides remembering a square root is plus or minus the answer x+3 = +/-sqrt(4/9) sqrt(4/9)=2/3for the first solution x+3 = 2/3 or x = -7/3for the secon...
TB
Answered by Thomas B. • Maths tutor
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Describe the process of translation

Transcription is the first stage of protein synthesis. It involved the formation of primary mRNA. Transcription begins with a section of DNA within the nucleus unwinding using enzyme DNA helicase. This separ...
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Answered by Jaydeep B. • Biology tutor
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Expand the brackets: (3a+3)(a+4)

To expand this, we must multiply each term in both brackets separately and then add all of these terms together. First, multiply the first term in each of the brackets: 3a x a = 3a^2. Next multiply the first...
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Answered by Luke B. • Maths tutor
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Explore how Carol Ann Duffy presents the fragility of love in ‘Betrothal’, and make connections with one or two other poems from your collection.

Duffy also presents the fragility of love through her choice of form. ‘You’ is a Shakespearean sonnet, comprised of four quatrains and a rhyming couplet, which is a traditional poetic choice when presenting ...
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Answered by Chloe T. • English tutor
7545 Views

Solve 2x+1=11

When faced with a question like this, the aim is to work out the value of "x". What this question basically means is "what number can we multiply by 2 and add 1 onto it to get 11. There a few ...
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Answered by Molly I. • Maths tutor
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