09-10-2022
Mathematics

Answered

Solve the equation
x² + 4x-7 = 0
by completing the square.
Give your answers correct to 2 decimal places.

Answer :

Other Questions

(a) Plot the graph of y = 6+x-x². Use the graph to find the solutions to equation (a) 6+x-x² = 0 (b) 6+x-x² = -6 3 Solving Equations Graphically 42 7 6 2 2 -4 -

Let (fog)(x)=x² + 4x + 1 and g(x)=2x-1. find f(x)?

Solve equation 6f+2g=8f+9 for f f=

a) Work out the size of angle x. b) Give reasons for your answer. + A E CI B to F G 100° D H

Solve the following problems using special product. SHOW YOUR SOLUTION.3.) Find the area of the square shaped lot whose side measures (9m+4n-3p) inches.

7 The curve with equation y=pr²-4px-5p, where p is a constant does not intersect the line with equation y=2x-12. (a) Show that 9p²-8p+1 <0 (b) Find the set o

1. 53 54 53 ● || - 4 please help me I need this now

This bar chart shows the average monthly expenditure, by category, of households in a particular town in 2010 and 2020. 600 Average monthly expenditure (£) 500

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermom

find, correct to 2 significant figures;the maximum error, if the area of a circle is 44cm^2 to the nearest cm^2