Math, asked by rosey5, 4 months ago

Factorise 3x^2+7√5-30

Answers

Answered by McPhoenix

$3x^{2} + 7\sqrt{5} - 30\\\\3x^{2} + 9\sqrt{5}x - 2\sqrt{5}x - 30\\\\3x(x + 3\sqrt{5}) - 2\sqrt{5}(x + 3\sqrt{5})\\\\(3x - 2\sqrt{5}) (x +3\sqrt{5})\\\\x = -3\sqrt{5} \\\\x = \frac{2\sqrt{5} }{3}$

Previous Question

Next Question

Similar questions

Science, 2 months ago

2. write true or false,The solid which dissolves in the liquid is called a solvent...

Math, 2 months ago

$2x - 7x + 3$ ...

Science, 2 months ago

can someone tell me please...

English, 4 months ago

present tense all formlas with example...

Computer Science, 4 months ago

Computers are ............They do not become tired or bored...

Math, 10 months ago

Which of the following are quadratic equations? (i) x²+6x-4=0 (ii) √3x²-2x+1/2=0 (iii) x²+1/x²=5 (iv) x-3/x=x² (v) 2x²-√3x+9=0 (vi) x²-2x-√x-5=0 (vii) 3x²-5x+9=x²-7x+3 (viii) x+1/x=1 (ix) x²-3x=0 (x) (x+1/x)²=3(x+1/x)+4 (xi) (2x+1)(3x+2)=6(x-1)(x-2) (xii) x+1/x=x²,x≠0 (xiii) 16x²-3=(2x+5)(5x-3) (xiv) (x+2)³=x³-4 (xv)x(x+1)+8=(x+2)(x-2)...

Math, 10 months ago

Mean of a certain number of observations is . If each observation is divided by m(m ≠ 0) and increased by n, then the mean of new observation is A. x'/m+n B. x'/n+m C. x'+n/m D.x'+m/n...

Math, 10 months ago

If the mean observations x₁, x₂, ..., xn is x', then the means of x₁ + a, x₂ + a, ..., xn + a is A. ax' B. x'-a C.x'+a D.x'/a...

Factorise 3x^2+7√5-30​

Answers

Factorise 3x^2+7√5-30