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What is the expansion of (x + 4)(x - 5) ?

To expand this we multiply the first term in each bracket together to get x 2 Then we do the first bracket's first term by the second bracket's second term to get -5x The we do the first bracket's second ter...
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Answered by Honor D. • Maths tutor
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Is the Separation of Powers the ‘republican remedy for the diseases most incident to republican government’ that Madison supposed?

When the political leaders and statesmen collectively known as the Founding Fathers of the United States of America met in Philadelphia in 1787 to address the problems in governing the country, they sought t...
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A scientist makes 12,000 cm^3 of a salt solution of concentration 9 g/L. You are given: 1 litre = 1 dm^3, where 1 dm = 10 cm.How much salt has he added?

108 g
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Answered by julian n. • UCAT tutor
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Describe the process of positive phototropism

Uneven distribution of the hormone auxin in a root tip whereby the plant hormone diffuses in the opposite direction from a source of light. This will trigger the differential growth and elongation of the pla...
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Answered by Jack J. • Biology tutor
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What's the difference between Bronsted-Lowry acids and Lewis acids?

A Bronsted-Lowry acid is a proton donor. (Bronsted-Lowry acids and bases only involve protons or H+)A Lewis acid is an electron pair acceptor. (Lewis acids and bases involve the transfer of electrons, a bit ...
Answered by • Chemistry tutor
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