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Solution given:

Area of rhombus=1/2 ×d1×d2=1/2 (12×9)=54cm²

1.A=1/2(9)(12)

2.54cm²

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

i think that you should ask google for the answer to that problem because if we don't know it google does