## nilankshi 3 years ago solve: 1.x^2-root 2^2 -220=0 2.x^2+root 13x+90=0 3.x^2 +15 root 5x+270=0 4.x^2+2 root 5x+75=0

1. Rohangrr

1. -6+x^2

2. Rohangrr

2. x^2+13x+9

3. Rohangrr

3. x^2+17x

4. Rohangrr

x^2+10x^2

5. nilankshi

can u give mee the hint of how to solving this..??

6. Rohangrr

just multiply the roots

7. nilankshi

can u expail mee..plzz..

8. Rohangrr

Multiply the exponent of . by 2giving The answer is .x^2 evaluates to Multiply r and 2 Multiply r and 1 The r just gets copied along. The answer is r r 2*r evaluates to 2r Multiply o and 2r Multiply the o and r Multiply o and r The o just gets copied along. The r just gets copied along. The answer is or or 2*r*o evaluates to 2or Multiply o and 2or Multiply the o and or Multiply o and or Combine the o and o by adding the exponents, and keeping the o, to get The r just gets copied along. The answer is 2*r*o*o evaluates to Multiply t and Multiply the t and Multiply t and The t just gets copied along. The just gets copied along. The r just gets copied along. The answer is 2*r*o*o*t evaluates to Multiply 5 and Multiply 1 and The t just gets copied along. The just gets copied along. The r just gets copied along. 2*r*o*o*t*5 evaluates to Multiply x and Multiply the x and Multiply x and The x just gets copied along. The t just gets copied along. The just gets copied along. The r just gets copied along. The answer is 2*r*o*o*t*5*x evaluates to .x^2+2*r*o*o*t*5*x evaluates to The answer is .x^2+2*r*o*o*t*5*x+ evaluates to The final answer is