Question

a. (2 + 2) × (3+2) = b. (9 -47) (10 + 2) =c. (11 - 3) (7 - 4) =d. (x + 4) (x + 3) =e. (x - 5) (x – 4) =f. (x - 4) (x + 7) =g. (2x – 3y) - 2 (3x + y)h. (2p – q) × (3p + 2q)i. (4x – 2y) +3 (5x + 3y)j. 2 (3a –b) (2a -4b)k. (2a +b)2l. (2x – 3y)2 m. (3+4) (4+2) n. (2a –c) (3a + 4c) o. (4x – 2y) - 3 (5x + 3y)p. 2(2x + 1)q. x(-2x – 1)r. -2(-x + 1)s. 4(x + 1)

Answer 1

we have

x=2a-b^2

`x=2a-b^2`

solve for a

That means -----> isolate the variable a

step 1

adds b^2 both sides

x+b^2=2a

step 2

Divide by 2 both sides

a=(x+b^2)/2

therefore

the answer is the option 2