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Draw a graph and clearly label any x and y intercepts for the equation y=x^2+6x+9

Step 1: Factorise the equation either directly or by using the quadratic formulae {[-b(+/-)sqrt(b^2-4ac)]/2a}. This equation can be factorised directly since 3*3=9 (for the last term on the RHS) and 3+3=6 (f...
EY
Answered by Emad Y. • Maths tutor
4299 Views

I struggle with simultaneous equations, when you have a quadratic involved

Example solve the following, equation 1: x 2 +2y=9 equation 2: y=x+3In this example we have to use substitution, therefore we sub in equation 2 into 1 to get the following x 2 +2(x+3)=9 , now we must expand ...
BF
Answered by Benjamin F. • Maths tutor
3193 Views

What is the square root of (2^6 + 6^2)

2^6 = 64 (2x2x2x2x2x2)6^2= 36 (6x6) 64+36= 100 Square root of 100= 10 (10x10=100)
BS
Answered by Bella S. • Maths tutor
6221 Views

What is the hypotenuse of the triangle if the other 2 sides are 8cm and 6cm?

a^2 + b^2 = c^2c^2 = 8^2 + 6^2c^2 = 64 + 36c^2 = 100c=10
LO
Answered by Lucy O. • Maths tutor
3225 Views

Solve 3x^2 + 6x + 3 = 0

Since there is a common factor of 3 on the the left hand side of the equation, you can take that out as a factor: 3(x^2 + 2x +1) = 0 Then you you can divide both sides by 3: x^2 + 2x + 1 = 0 Now you need to ...
SG
Answered by Samarth G. • Maths tutor
4116 Views